This dish reminds me of quiet dinners after a long day, when simple ingredients come together like magic. Slow-cooked onions turn sweet and golden, then swirl into pasta kissed with homemade chili oil. It’s humble, comforting, and surprisingly bold—just like the best moments in life.
12 oz spaghetti or pasta of choice
2 large onions, thinly sliced
3 tbsp olive oil (plus more for chili oil)
1 tsp butter
1 tsp sugar
Salt to taste
½ tsp red pepper flakes (or more to taste)
Optional: chopped parsley or grated Parmesan
In a large pan, heat 2 tbsp olive oil and butter over low heat.
Add sliced onions, a pinch of salt, and sugar. Cook slowly for 25–30 minutes, stirring often, until golden and caramelized.
Meanwhile, cook pasta until al dente. Reserve ½ cup of pasta water.
For chili oil: heat 1 tbsp olive oil in a small pan and add red pepper flakes. Let it sizzle for 30 seconds, then remove from heat.
Toss cooked pasta with caramelized onions and enough pasta water to loosen the sauce.
Drizzle with chili oil and garnish as desired.
Add garlic during the last 5 minutes of caramelizing for extra depth.
Use shallots for a slightly sweeter flavor.
Control the spice by adjusting the chili flakes or using mild chili oil.