Sweet Heat Caramelized Onion Fettuccine (Printable Version)

Luxurious fettuccine with sweet caramelized onions, creamy sauce, and a touch of spicy heat for a perfectly balanced vegetarian pasta.

# 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

# Method:

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

# Chef's Tips:

01 -
  • The way sweet and heat dance together keeps everyone guessing what makes it so addictive
  • Caramelized onions turn ordinary pasta into something that feels like a restaurant splurge
02 -
  • Pasta water is liquid gold, do not dump it down the drain or your sauce will never come together properly
  • Caramelized onions take longer than you think, so do not rush this step or you will miss all the deep flavor development
03 -
  • Slice your onions as thinly as possible for even cooking and the best texture
  • If the sauce looks too thick, add more pasta water rather than more cream

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