Creating Caramelized Onion Pasta with Chilli Oil couldn’t be easier. Just follow these steps:

1. Cook the Pasta: Fill a large pot with salted water and bring it to a boil. Add the spaghetti or fettuccine and cook according to package instructions until al dente. Reserve 1 cup of pasta water, then drain the rest.

2. Prepare the Onions: In a large skillet, heat the olive oil and butter over medium heat. Add the sliced onions and sauté for about 10 minutes until they start to soften.

3. Caramelize the Onions: Stir in the sugar, salt, and pepper. Continue cooking for an additional 10-15 minutes, stirring occasionally until the onions turn a deep golden brown.

4. Flavor the Oil: Add the minced garlic and red chili flakes to the onions. Cook for 2-3 minutes until fragrant.

5. Combine Pasta and Onions: Add the cooked pasta to the skillet. Pour in a bit of reserved pasta water to create a silky sauce. Toss until the pasta is well coated.

6. Finish and Serve: Remove from heat, and if desired, mix in grated Parmesan cheese. Serve hot, garnished with fresh parsley.

These straightforward steps ensure a delightful journey, from the sizzling onions to the final dish that tantalizes the taste buds!