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Glossy Spicy Onion Pasta

A bold, glossy pasta made with caramelized onions, garlic, chili flakes, and a savory-sweet sauce.
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Prep Time 10 minutes
Cook Time 20 minutes
Total Time 30 minutes
Course Dinner, Main
Cuisine Fusion, Italian
Servings 4 servings
Calories 410 kcal

Equipment

  • Large skillet
  • Pasta pot
  • Wooden spoon

Ingredients
  

Pasta Base

  • 12 oz spaghetti
  • 3 yellow onions thinly sliced
  • 4 cloves garlic minced
  • 3 tbsp olive oil
  • 2 tbsp butter
  • 1-2 tbsp chili flakes to taste
  • 2 tbsp soy sauce
  • 1 tbsp vinegar rice or apple cider
  • 1 tbsp brown sugar
  • 0.5 cup pasta water reserved

Instructions
 

  • Cook pasta in salted boiling water until al dente. Reserve 1/2 cup pasta water.
  • Heat oil and butter in skillet. Add onions and cook slowly until golden and jammy.
  • Add garlic and chili flakes. Cook 1 minute.
  • Stir in soy sauce, vinegar, and sugar.
  • Add pasta water and emulsify into glossy sauce.
  • Toss pasta in sauce. Season and serve.

Notes

Adjust chili level to taste. Add protein if desired.
Keyword chili onion pasta, easy spicy pasta, glossy pasta sauce, glossy spicy onion pasta, spicy onion pasta recipe