Kosuke Introduce
For Californians on the hunt for a truly satisfying and authentic ramen experience, Kosuke in Alhambra stands out as a "hidden gem." While it might appear unassuming from the outside, this cozy ramen shop on Main Street consistently delights its patrons with deeply flavorful broths, perfectly cooked noodles, and a menu that extends beyond just ramen to offer a full spectrum of Japanese comfort food. It's a place where quality ingredients meet warm, attentive service, creating a dining experience that feels both genuine and incredibly welcoming. If you're in the San Gabriel Valley area and craving a bowl of meticulously crafted ramen, or perhaps some of the crispiest popcorn chicken you've ever tasted, Kosuke is an absolute must-visit.
Kosuke is conveniently located at 618-B W Main St, Alhambra, CA 91801, USA. This prime spot places it right "at the corner of Main & Atlantic" in the bustling heart of Alhambra. Its central position makes it highly accessible for residents of Alhambra and neighboring cities in the San Gabriel Valley, including San Gabriel, Monterey Park, and Pasadena.
One of the key advantages of Kosuke's location is its parking situation. While the restaurant itself might be small, customers praise the availability of parking. There is "a small parking lot behind the restaurant," which often provides convenient spots. Furthermore, if that lot is full, there's "always a free parking structure nearby," ensuring that finding a place for your vehicle is rarely an issue. This ease of accessibility, combined with its central location on a major thoroughfare, means that a delicious bowl of ramen is always within easy reach for locals and visitors exploring Alhambra's vibrant culinary scene.
Kosuke focuses on providing a delightful and convenient dining experience through its range of services.
Dine-In Service: Enjoy the "cozy little shop" atmosphere. Despite its size, Kosuke offers a comfortable and inviting environment for savoring your ramen and other Japanese dishes. The "exceptionally warm and attentive" service enhances the dine-in experience.
Takeout Options: For those on the go or preferring to enjoy their meal at home, Kosuke provides efficient takeout services. You can call ahead or order in person for pick-up.
Delivery Services: Kosuke partners with popular third-party delivery platforms like DoorDash, Uber Eats, and Postmates. This ensures that you can enjoy their delicious ramen, appetizers, and other menu items delivered directly to your doorstep, bringing authentic Japanese flavors to your home or office.
Diverse Ramen Menu: While ramen is the star, the menu offers a wide variety of ramen types including Tonkotsu, Spicy Ramen, Spicy Miso Ramen, Kuro Ramen (with black sesame oil), Miso Ramen, Corn Butter Ramen, Pork Cutlet Ramen, Chicken Cutlet Ramen, and Vegetarian Ramen. Each can often be customized with chashu or their famous popcorn chicken.
Udon and Curry Options: Beyond ramen, Kosuke features a selection of udon noodle dishes (such as Wakame Udon, Shrimp Tempura Udon, Nabeyaki Udon, and Kosuke Udon) and various Japanese curry plates (Chicken Cutlet Curry, Popcorn Chicken Curry, Tofu Curry, Shrimp Curry, Sausage Curry), catering to a wider range of preferences.
Variety of Appetizers and Plates: The menu also includes popular Japanese appetizers like Popcorn Chicken, Agedashi Tofu, Fried Gyoza, Takoyaki, and Edamame, as well as hearty plates like Chicken Cutlet Plate, Pork Cutlet Plate, and Unadon (boiled eel on rice).
Recommendations from Friendly Staff: The staff is "really friendly and can give you good recommendations if it's your first time here," helping new customers navigate the menu and find their perfect dish.
Kosuke stands out as a must-try ramen spot in California thanks to its distinctive features and culinary highlights.
Rich and Authentic Ramen Broths: Customers consistently praise the quality of Kosuke's ramen broths. The Vegetable Ramen, for instance, features a "rich and savory broth," while the overall ramen broth is noted for its "authentic flavor" and being "not too thick like most other ramen restaurants," striking a perfect balance. Options range from traditional Tonkotsu to unique Kuro Ramen with black sesame oil.
Legendary Popcorn Chicken: A standout item that garners immense praise is their "Popcorn Chicken." It's described as a "must-order dish at every table," being "crispy on the outside and juicy on the inside without being greasy," and easily "outclassed any popcorn chicken we've had elsewhere." It can be enjoyed as an appetizer or as a protein in their ramen.
Exceptional Agedashi Tofu: Another highly commended appetizer is the "Agedashi Tofu," lauded for its "silky texture and perfectly balanced sauce," showcasing the kitchen's attention to detail beyond just ramen.
Warm and Attentive Service: The service is a major highlight, consistently described as "exceptionally warm and attentive," and the staff is "really friendly." This contributes significantly to an enjoyable dining experience, making patrons feel welcomed.
Diverse Menu with Vegetarian Options: Kosuke offers a comprehensive menu beyond traditional ramen, including various udon dishes and a selection of Japanese curries. Importantly, they provide flavorful "Vegetable Ramen" and other options with tofu or vegetable bases, catering to diverse dietary needs.
Great Value and Filling Portions: Customers find the meals to be substantial and satisfying. Even a basic ramen bowl or udon provides a "very filling" meal, offering excellent value for the price.
Cozy and Local Vibe: Despite its popularity, Kosuke maintains a "cozy little shop" feel, reinforcing its status as a beloved local spot rather than a large, impersonal chain.
Kosuke is known to offer value-added promotions that enhance the dining experience for its customers. One notable promotion highlighted by a recent customer review is the ability to "add $1 when ordering an entrée to add a side of gyoza with your food." This kind of offer provides an excellent opportunity to enjoy additional items at a discounted rate, making an already satisfying meal even better.
Given its commitment to providing great value, it's recommended that patrons inquire about any other ongoing specials when they visit or call. While the reviews don't specify seasonal or rotating discounts, the "add $1 for gyoza" deal indicates a focus on enhancing the customer experience through affordability. Locals can check Kosuke's direct website (if available), social media pages, or their listings on delivery platforms like DoorDash and Uber Eats, as these platforms often feature current promotions or bundled deals that might be available.
To experience the delicious ramen and warm hospitality of Kosuke, here is their contact information:
Address: 618-B W Main St, Alhambra, CA 91801, USA
Phone: (626) 289-8030
For inquiries about wait times (especially during rush hour, when a short wait might be expected), current promotions, or to place a takeout order, calling ahead is recommended. Their presence on various delivery apps also provides a convenient way to browse their full menu and order from the comfort of your home.
Kosuke is an exceptional fit for locals in California, particularly those in the Alhambra and San Gabriel Valley areas, offering an authentic, high-quality, and genuinely welcoming ramen experience. Its status as a "hidden gem" means it provides a beloved local spot without the overwhelming crowds often found at larger, more commercial establishments, though a short wait during rush hour is a testament to its popularity.
The core appeal lies in its outstanding food: from the rich, "authentic flavor" of its ramen broths that aren't overly thick, to the universally praised "crispy on the outside and juicy on the inside" Popcorn Chicken and the "silky texture" of the Agedashi Tofu. This commitment to culinary excellence ensures a satisfying meal every time. Furthermore, the "exceptionally warm and attentive" staff creates an inviting atmosphere, making diners feel truly appreciated. The convenient location on Main Street, coupled with accessible parking, makes it a hassle-free destination. Whether you're craving a comforting bowl of Vegetable Ramen, an adventurous Popcorn Chicken Ramen, or simply a delicious Japanese meal in a friendly setting, Kosuke delivers. It’s more than just a restaurant; it’s a valued community spot where great food and genuine hospitality converge, encouraging locals to return again and again.
Kosuke Menu
Bowl
(Served with miso soup and salad)
- Spicy Jfc Don US$9.25
(Japanese fried chicken with spicy mayo and salsa on rice)
- Bbqdon US$9.50
(Beef and onion on rice)
- Unadon US$11.95
(Broiled eel on rice)
Appetizer
- Agedashi Tofu US$3.95
- Egg Roll US$3.95
- Fried Gyoza US$3.95
- Satsuma Age US$4.50
(Fried fishcakes)
- Popcorn Chicken US$4.95
- Japanese Sausage US$4.95
- Croquet US$4.95
- Fried Calamari US$4.95
- Fried Geso US$4.95
(Squid leg)
- Aji Fry US$4.95
(Horse mackerel)
- Takoyaki US$4.95
- Salsa Jfc US$5.95
- Rice US$1.50
- Miso Soup US$1.50
- Mini Salad US$1.95
Dessert
- Green Tea Ice Cream US$2.50
- Taiyaki US$4.95
Drinks
- Sodas US$1.50
- Hot Tea US$1.50
- Calpico US$2.00
- Ramune US$2.00
- Iced Coffee US$2.00
- Milk Tea US$2.75
- Honey Green Tea US$2.75
Plate
(Served with rice, miso soup, and salad)
- Japanese Fried Chicken Plate US$8.95
- Popcorn Chicken Plate US$8.95
- Pork Cutlet Plate US$8.95
- Aji Fry And Calamari US$9.25
- Chicken Cutlet Plate US$8.95
Curry
(Served with salad)
- Tofu Curry US$7.95
- Shrimp Curry US$8.95
- Chicken Cutlet Curry US$8.95
- Japanese Fried Chicken Curry US$8.95
- Popcorn Chicken Curry US$8.95
- Pork Cutlet Curry US$8.95
- Croquette Curry US$8.25
- Sausage Curry US$8.25
Ramen
- Miso Ramen US$9.25
Noodle in miso based soup with chashu or popcorn chicken, egg, seaweed, and green onion.
- Spicy Miso Ramen US$9.50
Noodle in special blended spicy miso based soup with chashu or popcorn chicken, egg, spicy bamboo, seaweed, and green onion.
- Corn Butter Ramen US$9.50
Noodle in miso based soup with chashu or popcorn chicken, corn, butter, seaweed, and green onion .
- Tonkotsu Ramen US$9.25
Noodle in pork flavor soup with chashu or popcorn chicken, egg, black mushrooms, green onion, and ginger.
- Vegetable Ramen US$9.50
Noodle in miso based soup with tofu, black mushrooms, seaweed, corn, and green onion.
- Spicy Ramen US$9.50
Noodle in special blended spicy pork soup with chashu or popcorn chicken , egg, spicy bamboo, black mushrooms, and green onion.
- Popcorn Chicken Ramen US$10.50
Noodel in pork flavor soup with popcorn chickens green onion, and ginger.
Udon
- Tanuki Udon US$6.95
Udon noodle in soup with tempura flakes, fish cake, seaweed, and green onion.
- Wakame Udon US$6.95
Udon noodle in soup with seaweed, fish cake, and green onion.
- Croquette Udon US$7.95
Udon noodle in soup with croquette, fish cake, seaweed, and green onion.
- Kitsune Udon US$7.25
Udon noodle in soup with sweet soybean curd, fish cake, seaweed, and green onion.
- Kakiage Udon US$7.95
Udon noodle in soup with kakiage, fish cake, seasweed, and green onion.
- Satsuma Age Udon US$7.95
Udon noodle in soup with satsuma age, fishcake, seaweed, and green onion.
- Kosuke Udon US$8.95
Udon noodle in special soup with popcorn chicken, tempura flakes, fish cake, seaweed, green oinion, and ginger.
- Nabeyaki Udon US$9.50
Udon noodle in soup with boiled shrimp. egg, fish cake, seaweed, tempura flakes, and green onion.
- House Special Udon US$8.95
Udon noodle in soup with popcorn chicken, sweet soybean curd, tempura flakes, fish cake, seaweed and green onion.
Extra Topping
- Green Onion US$0.50
- Lemon US$0.50
- Seaweed US$0.75
- Black Mushroom US$0.75
- Corn US$0.75
- Fried Garlic US$0.75
- Spicy Bamboo US$0.75
- Kimchi US$0.75
- Nori Seaweed US$0.75
- Tofu US$0.75
- Butter US$0.75
- Egg US$1.50
Ramen Set
Add one item to any of ramens:
- Gyoza US$1.00
- Croquette US$1.50
- Mini Curry US$1.50
- Tofu Salad US$1.50
- Fried Calamari US$2.50
- Kakiage Don US$3.00
Summer Special Cold Ramen
- Sesame Miso Chicken US$8.95
Limited 10 servings per day
- Cold Shoyu Bonito US$8.95
- Cold Spicy Miso US$8.95
Others
- Chicken Cutlet Ramen US$10.50
Noodle in pork flavor soup with chicken cutlet, black mushrooms, green onion, and ginger.
- Pork Cutlet Ramen US$10.50
Noodle in pork flavor soup with pork cutlet, black mushrooms, green onion, and ginger.
- Tonkotsushoyu Ramen US$9.25
Noodle in blended fish and pork flavor soup with chashu or popcorn chicken, egg, seaweed, nori, and green onion.
- Kuro Ramen US$9.95
Noodle in pork flavor soup with special blended black sesame oil, chashu or popcorn chicken, egg, black mushrooms, green onion, and ginger.
Kosuke Details
Service options
- Takeaway
- Dine-in
- Delivery
Highlights
- Fast service
Popular for
- Lunch
- Dinner
- Solo dining
Accessibility
- Wheelchair-accessible car park
Offerings
- Alcohol
- Comfort food
- Quick bite
Dining options
- Lunch
- Dinner
- Table service
Amenities
- Toilet
Atmosphere
- Casual
- Cosy
- Trendy
Crowd
- Tourists
- University students
Planning
- Usually a wait
- Accepts reservations
Payments
- Credit cards
- Debit cards
- NFC mobile payments
- Credit cards
Children
- Good for kids
Parking
- Free of charge street parking
- Free parking lot
Kosuke Photos










Kosuke Location
Kosuke Reviews
This ramen shop on Main St. in Alhambra may look unassuming from the outside, but it's truly a hidden gem that left us pleasantly surprised. The service here is also exceptionally warm and attentive, making the dining experience even more enjoyable.This time, my daughter and I ordered the Vegetable Ramen and Wakame Udon, with Popcorn Chicken and Agedashi Tofu as appetizers. My Vegetable Ramen featured a rich and savory broth, paired with tofu, scallions, corn, seaweed, and black fungus. Adding a touch of spice elevated the flavors, creating a more complex and satisfying taste. My daughter's Wakame Udon had a sweet and light broth made with seaweed, scallions, and fish cake, which was perfect for those who prefer a more subtle flavor.The Popcorn Chicken, a must-order dish at every table, was undoubtedly the highlight of our meal! Crispy on the outside and juicy on the inside without being greasy, it easily outclassed any popcorn chicken we've had elsewhere. The Agedashi Tofu was equally impressive, with its silky texture and perfectly balanced sauce.We're thrilled to have discovered this hidden culinary treasure and will definitely be back!
December 10 · Janet ChangIt's a cozy little shop right at the corner of Main & Atlantic. They have a small parking lot behind the restaurant, so you can usually find parking around here. If not, there's always a free parking structure nearby.The staff is really friendly and can give you good recommendations if it's your first time here. I would personally either their popcorn chicken ramen or chicken cutlet ramen. The chicken is super fresh and crispy here. The ramen broth is also really great. It's has authentic flavor and is not too thick like most other ramen restaurants.Keep in mind, since this restaurant is small in size, expect to wait during rush hour. But the wait usually isn't that long.They are also doing a little promotion that you can add $1 when ordering an entrée to add a side of gyoza with your food. So definitely give it a shot.
February 05 · Edmund LiaoREVIEW FROM LAST WEEK:⭐️⭐️⭐️⭐️⭐️Went there for the first time last week. It was pretty good and would definitely go there again. The only thing that I wished that they had reservations and it’s a little small in there. But other than that, food was good and comes in a pretty good size. I ordered the spicy ramen and loved it, my niece had the popcorn chicken ramen. They give you a good amount of popcorn chicken.UPDATED REVIEW: ⭐️⭐️⭐️Why did I decided to change? I told my husband that my niece and I went there for the first ever and that food and service was good. My husband wanted to try it today so went. They didn’t look busy and took nearly 30 minutes for our food to be brought out to us. My husband was starving, he was getting impatient so I had to distract him. Last week when I came, it was a Saturday night. They were busy but we got our food pretty fast, which felt like a 10 minute wait. Not sure what happened today, but they were really lagging it today. There were also customers there before us who also waited about 30 minutes or more for their food. My husband said that the food was good, but the long wait ruined his mood and he does not want to come here again.
March 21 · Sgt. B295The ramen was very delicious and the Aji fry was very tasty. I would go back here again!
December 10 · Mariko Shimosawa"The ramen broth was wonderfully savory, and the noodles were perfectly cooked and delicious. The gyoza was cooked to perfection—crispy on the outside and packed with delicious flavor inside. I also enjoyed the green tea, though it could have been a bit stronger in flavor."
May 19 · momofuku33
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