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One Pot Caramelized Onion Pasta

One pot carmelized onion pasta - the image shows a close-up of a bowl of spaghetti. the spaghetti is cooked al dente and is covered in a tomato sauce. the sauce is a deep red color and appears to be thick and creamy. on top of the spaghetti, there is a generous amount of grated parmesan cheese, which is sprinkled with chopped parsley. the bowl is made of dark-colored ceramic and is sitting on a dark wooden table. the background is blurred, but it seems to be a kitchen countertop.

A simple and flavorful one pot pasta dish featuring sweet caramelized onions cooked directly with pasta for a rich, comforting meal.

Ingredients

Scale

3 large yellow onions, thinly sliced
3 tablespoons olive oil
4 cloves garlic, minced
1 teaspoon salt
1/2 teaspoon black pepper
1/2 teaspoon dried thyme
1/4 teaspoon red pepper flakes
12 ounces dried spaghetti pasta
4 cups vegetable broth
1 cup water
1/2 cup grated Parmesan cheese
2 tablespoons unsalted butter
2 tablespoons chopped fresh parsley

Instructions

Heat olive oil in a large deep skillet or wide pot over medium heat.
Add the sliced onions and salt. Cook, stirring occasionally, until onions are deeply caramelized and golden brown, about 20 minutes.
Add the minced garlic, dried thyme, and red pepper flakes to the onions. Cook for 1 minute until fragrant.
Add the dried spaghetti pasta to the pot, then pour in the vegetable broth and water. Stir to combine and make sure the pasta is mostly submerged.
Bring the mixture to a boil, then reduce heat to medium-low. Simmer uncovered, stirring occasionally, until the pasta is cooked al dente and the liquid is mostly absorbed, about 10 minutes.
Remove the pot from heat. Stir in the unsalted butter and grated Parmesan cheese until melted and creamy.
Adjust seasoning with additional salt and pepper if needed.
Sprinkle chopped fresh parsley over the pasta before serving.