I love this ramen place been coning here since they opened and i always leave satisfied with my ramen plate. I stick to what i like but my husband does like to change it up. My favorite is the spicy popcorn chicken ramen medium spice.

It is very easy to miss this spot on Main St! We came before it started getting crowded so there was no wait at all, though when we were leaving, there was a crowd waiting outside (in the rain!) Service was very kind and attentive to our needs, checking on us frequently. The table shared the fried chicken and I got the tonkotsu ramen. The fried chicken was crispy and had nice flavor. The tonkotsu ramen had a nice broth and was flavorful, but it wasn't the best I've ever had. My parents had the spicy miso and enjoyed it a lot, especially the spice level of the dish! Parking is easy to miss, it is a very small entrance and parking can be limited, especially if there is a large crowd.

Came back to Kosuke and I'm so glad I did! I tried their croquette, and wow ... it was SO good. Super crispy on the outside and potato was good. Definitely recommend trying the croquette if you come here and getting the ramen.. Can't wait to come back again!! Service was quick and seating is limited.

have not been here for years and wanted udon. the food quality has not changed much from what i last remembered and the place was quality back then. just advance notice that if you decide to pay with a debit/credit card, they add a 3% surcharge to your tab.

Great ramen. Best in town. I was advised to order the spicy ramen with popcorn chicken on the side. Such a great duo. Dip the fried chicken and enjoy the crunch and the spiciness of the broth. This place is small so seating is limited. Wall in, sign in and wait! Worth the wait. Great service and great tasting ramen.

I can't believe it took me this long to give Kosuke a try. The place is so close to where i live, but since it kinda looks like a bar, i thought they must be premium ramen. I was wrong. They have the most reasonably priced side/fried food. If you love ramen and sometimes you skipped the fried sides because it cost nearly the same like the ramen, you'll be delighted to find that Kosuke offers great fried sides that does not break the bank. Great price aside, they really don't skimp on quality. If i have to find three words to describe Kosuke, it's high discipline craft. Everything is done perfectly. The ramen broth is rich but not too thick. The noodle is more like somen, as in thin noodles, cooked perfectly that it's soft and yet not breaking. I smelled a little hint of ginger, making the flavor profile rich but refreshing. They added ginger in such a way that not only it's not overpowering, you can't find it unless you really try. Finding them as a surprise in a few of your bites truly gives a deeper experience. I ordered the spicy ramen, and the spicy doesn't come from your run of the mill red chilli oil. There's indeed a layer of oil that has aromatic spicy scent. Marvelous. And lastly, they added the right part of green onion that when you scoop the broth and chew the green onion, it gives an even deeper flavor to the broth. Chashu also immaculate. Normally you find chashu that is charred with butane torch. Sometimes it's too charred or not enough. Kosuke cooked their chashu perfectly. It's tender but not breaking. Not dry. Not gamey. It's just smooth. The fried gyoza was just okay for me. Don't get me wrong, they cooked it perfectly as well, it's just that i've been spoiled with gyozas with insane level of garlic and green onion. Gyoza skin was fried to crisp and the filling tastes mild and smooth. But the cherry on top was the fried horse mackerel. Must be the most perfect panko fry ever. Crispy, not so oily, and even the tail is nicely crunchy. It has slight fishy flavor in the best way possible. Normally when you get fried fish, it tastes more as fried fritter than actual fish. Kosuke managed to get the perfect balance where you can still taste the fish AND the panko fry. Absolutely wonderful. Even the black mushroom and bamboo shoots is perfect as well. The black mushroom was not dry and not tough. Bamboo shoots is not stinky at all. It was quite a 'fight' to finish everything. They really make your money worth; that's a lot of quality food for the price. Service was amazing too. And the best part of it is that they provide amazing service that is curt and efficient. You don't have to nod with your mouth full trying to answer to questions like "how's everything?"

Kosuke Ramen... just delicious. A little gem tucked away in Alhambra. I've been coming here for years, and now I've realized just how popular this spot has gotten. I used to never have to wait, but now I find myself waiting a good 30 minutes to 1 hour just to get seated. So, make sure you come as early as possible. My go-to order is the Spicy Popcorn Chicken Ramen with the Popcorn Chicken on the side. It always hits the spot for me and the portion is so large, I always have enough chicken to take home with me for a late-night snack. On my most recent visit, I've noticed that they finally accept credit cards with a 3% transaction fee. I also noticed they finally changed the movie on the TV they have placed in the corner, LOL! Can't wait to come back! :)

Ordered: - Kuro Ramen with popcorn chicken (3.5/5): soup was a bit too oily for my liking and surprisingly somehow also tasted a bit watered down / not as rich as I had expected? Popcorn chicken was super yummy though. - Croquette on the side (5/5): super basic but yummy. Perfect level of crispiness and was so comforting to eat even during a heat wave. - Cold Spicy Miso Ramen with chashu, additional egg (3.5/5): Perfect seasonal item for a hot day. Portions were big and refreshing, but the taste wasn't groundbreaking. Overall (3.5/5): It didn't live up to our expectations, but is a good staple spot if you're a local. The interior is small and old fashioned, so the wait can be pretty long on certain days. The service was attentive, and we have no qualms there.