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Miso-Butter Noodles with Caramelized Onions

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After being completely starstruck by my gochujang butter noodles with caramelized onions, I couldn’t stop thinking about that combination. There was something about the way deeply sweet onions melted into a rich buttery sauce that felt too good not to explore further. So naturally, I went in a totally different direction and landed here.

This version swaps the spicy kick for something softer and deeper. The onions slowly caramelize until they’re jammy and golden, the butter adds pure comfort, and the white miso brings that savory fermented umami that makes you keep reaching for another bite. It’s cozy, rich, and surprisingly simple, with every thick udon noodle coated in a silky sauce that tastes like it took way more effort than it actually did.

  • Total Time: 40 minutes
  • Yield: 2 bowls 1x

Ingredients

Scale
  • 4 small yellow onions, sliced into rings
  • 4 garlic cloves, minced
  • 1 tsp light soy sauce
  • 1 tsp honey
  • 2 tbsp white miso
  • 1 tbsp beef tallow
  • 2 packs wet udon noodles
  • 3 tbsp starchy noodle water
  • 3 tbsp unsalted butter
  • Chives, very finely sliced, for topping
  • Fried onions, for topping
  • White sesame seeds, for topping

Instructions

  1. Combine light soy sauce, honey, and white miso into a paste.
  2. Heat beef tallow over medium heat and stir-fry onions for 25 to 30 minutes, until caramelized.
  3. Cook the wet udon in boiling water. Reserve 3 tablespoons starchy noodle water and mix it into the miso paste to make a sauce.
  4. Melt butter into the caramelized onions and add minced garlic.
  5. Add the miso sauce, then toss in the cooked udon until evenly coated.
  6. Serve topped with chives, sesame seeds, fried onions, and chili oil if desired.
  • Author: Dishcovery
  • Prep Time: 10 minutes
  • Cook Time: 30 minutes