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Melt 4 tablespoons of butter in a large skillet or pan over medium-low heat. Add the sliced onions and cook, stirring occasionally, until deeply caramelized and golden brown. This process can take 15-20 minutes to achieve a rich sweetness.

While the onions are caramelizing, bring a large pot of water to a rolling boil for the udon noodles.

Once the onions are caramelized, add the gochujang, soy sauce, brown sugar, and garlic powder to the pan. Mix all the ingredients thoroughly with the caramelized onions, stirring for about 1 minute to combine and allow the flavors to meld.

Cook the udon noodles according to the package instructions. Typically, fresh udon cooks in 2-3 minutes, while dried udon may take longer. Before draining, reserve 1 cup of the pasta water.

Using tongs, transfer the cooked udon noodles directly from the pot into the pan with the sauce mixture and caramelized onions. Add 1 cup of the reserved pasta water. Mix everything together well until the noodles are evenly coated with the rich sauce. If the sauce seems too thick, add a little more pasta water, 1 tablespoon at a time, until desired consistency is reached.

Serve the Gochujang Butter Caramelized Onion Noodles immediately, garnished with chopped spring onions and sesame seeds if desired.


Melt 4 tablespoons of butter in a large skillet or pan over medium-low heat. Add the sliced onions and cook, stirring occasionally, until deeply caramelized and golden brown. This process can take 15-20 minutes to achieve a rich sweetness.

While the onions are caramelizing, bring a large pot of water to a rolling boil for the udon noodles.

Once the onions are caramelized, add the gochujang, soy sauce, brown sugar, and garlic powder to the pan. Mix all the ingredients thoroughly with the caramelized onions, stirring for about 1 minute to combine and allow the flavors to meld.

Cook the udon noodles according to the package instructions. Typically, fresh udon cooks in 2-3 minutes, while dried udon may take longer. Before draining, reserve 1 cup of the pasta water.

Using tongs, transfer the cooked udon noodles directly from the pot into the pan with the sauce mixture and caramelized onions. Add 1 cup of the reserved pasta water. Mix everything together well until the noodles are evenly coated with the rich sauce. If the sauce seems too thick, add a little more pasta water, 1 tablespoon at a time, until desired consistency is reached.

Serve the Gochujang Butter Caramelized Onion Noodles immediately, garnished with chopped spring onions and sesame seeds if desired.
