Easy Chili Oil Udon Noodles Recipe

Easy Chili Oil Udon Noodles Recipe that you can whip up in 10 minutes on a weeknight or whenever your spicy carb cravings strike. I lean on this bowl when I want something bold, cozy, and low-effort. You get silky noodles, a glossy chili oil sauce, and just enough garlic to make your kitchen smell like you meant to cook. I keep the steps simple, the ingredients flexible, and the flavor huge.

Homemade Chili Oil Udon Noodles Recipe

I love this recipe because it delivers restaurant-style noodles in less time than it takes to scroll a delivery app. You build heat, umami, and richness with everyday pantry staples. The chili oil locks in spice while butter and noodle water turn everything into a velvety sauce. You can eat it plain or dress it up with an egg, shrimp, or veggies without changing the core recipe.

I trust this method because it never lets me down when I cook for two hungry people. I test it with frozen udon bricks, shelf-stable packs, and even fresh udon. The noodles stay bouncy, the sauce clings, and the heat level stays customizable. I also love how the chili oil “sediment” brings all the flavor, so I always scoop that up.

Substitutions & Variations

  • Swap the fat: Use butter for richness, toasted sesame oil for nuttiness, or neutral oil for a lighter bowl.
  • Adjust the heat: Use more or less chili oil, or blend in chili crisp for extra crunch.
  • Add protein: Toss in pan-seared shrimp, shredded rotisserie chicken, crispy tofu, or a jammy egg.
  • Add veg: Throw in baby spinach, quick-sautéed mushrooms, shredded cabbage, or blanched broccoli.
  • Tweak the sauce: Add a splash of dark soy for color, a squeeze of lime for brightness, or a spoon of peanut butter for a creamy spin.

Ingredients You’ll Need

  • 2 portions udon noodles (2 frozen bricks, 14–16 oz total, or 2 packs shelf-stable fresh udon)
  • 2–3 tablespoons chili oil or chili crisp (scoop plenty of sediment)
  • 1 tablespoon unsalted butter (or 1 tablespoon neutral oil)
  • 1½ tablespoons soy sauce (use low-sodium if you prefer)
  • 1 teaspoon rice vinegar (or lime juice)
  • 1–2 teaspoons sugar or honey, to taste
  • 2 cloves garlic, finely grated or minced
  • 1 teaspoon toasted sesame oil
  • 1–2 scallions, thinly sliced
  • Optional toppers: fried or soft-boiled egg, sesame seeds, nori strips, cilantro, crushed peanuts

Optional protein or veg add-ins (choose 1–2):

  • 6–8 oz shrimp, tofu, or leftover chicken
  • 1 cup mushrooms, spinach, or shredded cabbage

How to Make Chili Oil Udon Noodles

  1. Bring a medium pot of water to a boil. Drop in the udon and loosen the strands for 60–90 seconds if frozen or 30–45 seconds if fresh. Reserve 1/4 cup noodle water, then drain the noodles.
  2. Stir the sauce in a bowl: chili oil (with sediment), soy sauce, rice vinegar, sugar or honey, garlic, and sesame oil. Taste and adjust heat and sweetness to your liking.
  3. Heat a large skillet over medium. Melt the butter, then pour in the sauce and let it bubble for 15–20 seconds.
  4. Add the noodles to the skillet. Splash in 2–3 tablespoons noodle water and toss until the sauce turns glossy and coats every strand.
  5. Add scallions and any quick-cooking veg or pre-cooked protein. Toss for 30–60 seconds until everything warms and the noodles look shiny.
  6. Plate the noodles. Top with sesame seeds, more scallions, and an egg if you crave extra richness.

Helpful Tips

  • Use bouncy noodles: I grab frozen or vacuum-packed udon because they hold texture better than dried.
  • Emulsify on the stove: Add noodle water a little at a time and toss constantly so the butter, chili oil, and soy turn silky.
  • Control the heat: Start with 1 tablespoon chili oil if you prefer mild spice, then add more at the end.
  • Finish with acidity: A tiny splash of rice vinegar or lime lifts the whole bowl.
  • Park an egg on top: I fry an egg while the noodles cook so the yolk becomes instant sauce.

Serving Ideas

  • Pair with a crisp cucumber salad with rice vinegar and sesame for a cool contrast.
  • Serve alongside pan-fried dumplings or gyoza for a takeout-style spread.
  • Add miso soup or a light broth if you want a cozier meal.
  • Set out quick pickles, chili crisp, and extra scallions so everyone customizes their bowl.

Make-Ahead and Storage Tips

My chili oil udon noodles hold up shockingly well for meal prep, and I love packing a spicy lunch for busy days.

Make-Ahead: Cook the noodles and sauce, toss together, and cool quickly. Or whisk the sauce in advance and store it for up to 1 week so you can toss fresh-cooked udon in minutes.

To Refrigerate: Store cooled noodles in an airtight container for up to 3 days.
Freezing: Freeze plain cooked udon and the sauce separately for up to 2 months. Thaw both in the fridge overnight and toss in a hot pan.

To Reheat: Loosen the noodles with a splash of water in a skillet over medium heat, or microwave in 30-second bursts, tossing in between. Add a drizzle of fresh chili oil to wake the flavor back up.

Easy Chili Oil Udon Noodles Recipe
Adaly Kandice

Easy Chili Oil Udon Noodles Recipe

A quick and flavorful udon noodle dish tossed in spicy chili oil, perfect as a light meal or snack.
Prep Time 5 minutes
Cook Time 10 minutes
Total Time 15 minutes
Servings: 2
Course: Dinner
Cuisine: American

Ingredients
  

  • 200 g udon noodles
  • 2 tablespoons chili oil
  • 1 teaspoon soy sauce
  • 1 teaspoon sesame oil
  • 1 clove garlic, minced
  • scallions, chopped
  • sesame seeds

Instructions
 

  1. Cook udon noodles according to package instructions. Drain and set aside.
  2. In a pan, heat sesame oil over medium heat. Add minced garlic and sauté until fragrant.
  3. Add chili oil and soy sauce to the pan and stir to combine.
  4. Add cooked udon noodles to the pan and toss well to coat with the sauce.
  5. Remove from heat, garnish with chopped scallions and sesame seeds if desired.
  6. Serve warm and enjoy your easy chili oil udon noodles.

Notes

Adjust the amount of chili oil to your preferred spice level. Can add vegetables or protein for a more substantial meal.