Sweet Heat Caramelized Onion Fettuccine (Printable Version)

Creamy fettuccine with golden caramelized onions, honey-kissed parmesan sauce, and gentle chili heat

# What You’ll Need:

→ Pasta

01 - 14 oz fettuccine

→ Caramelized Onions

02 - 2 tbsp olive oil
03 - 2 tbsp unsalted butter
04 - 3 large yellow onions, thinly sliced
05 - 2 tbsp brown sugar
06 - 1 tsp salt

→ Sweet Heat Sauce

07 - 3 cloves garlic, minced
08 - 1 red chili pepper, finely chopped, seeds removed
09 - 1/2 cup heavy cream
10 - 1/4 cup grated Parmesan cheese
11 - 1 tbsp honey
12 - 1/2 tsp crushed red pepper flakes
13 - 1/4 tsp black pepper

→ Garnish

14 - 2 tbsp chopped fresh parsley
15 - Extra grated Parmesan cheese for serving

# Directions:

01 - Cook the fettuccine in a large pot of salted boiling water until al dente. Reserve 1/2 cup of pasta water, then drain the pasta and set aside.
02 - Heat olive oil and butter in a large skillet over medium heat. Add the sliced onions and salt. Cook, stirring occasionally, until onions soften and start to brown, about 10 minutes.
03 - Sprinkle in the brown sugar and continue to cook onions, stirring frequently, until deeply caramelized and golden, 15-20 more minutes.
04 - Add garlic and red chili pepper to the onions. Sauté for 1-2 minutes until fragrant.
05 - Stir in the honey, heavy cream, Parmesan, red pepper flakes, and black pepper. Simmer gently for 2-3 minutes until the sauce thickens slightly.
06 - Add cooked fettuccine to the skillet. Toss well to coat, adding reserved pasta water one tablespoon at a time until sauce reaches desired consistency.
07 - Taste and adjust seasoning as needed. Serve hot, garnished with fresh parsley and extra Parmesan cheese.

# Top Tips:

01 -
  • The onions develop a natural sweetness that balances perfectly with the gentle heat, creating layers of flavor that build with every bite.
  • This pasta manages to feel restaurant special while using ingredients you probably already have in your kitchen.
02 -
  • Caramelizing onions properly takes patience, do not rush this step by turning up the heat or you will burn them instead of caramelizing.
  • The pasta water is crucial for achieving the right sauce consistency, so do not forget to reserve it before draining.
03 -
  • Slice your onions as thinly and uniformly as possible for even caramelization.
  • Keep the heat at medium or medium low throughout the onion cooking process to develop the deepest flavor without burning.

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