Caramelized Onion Cream Pasta (Printable Version)
Rich, velvety pasta with sweet caramelized onions enveloped in a luxurious Parmesan cream sauce for ultimate comfort.
# What You'll Need:
→ Pasta
01 - 14 oz fettuccine or spaghetti
→ Caramelized Onions
02 - 3 large yellow onions, thinly sliced
03 - 2 tablespoons unsalted butter
04 - 1 tablespoon olive oil
05 - 1 teaspoon sugar
06 - 1/2 teaspoon salt
→ Cream Sauce
07 - 3/4 cup plus 2 tablespoons heavy cream
08 - 1/4 cup whole milk
09 - 1/2 cup grated Parmesan cheese
10 - 1 garlic clove, minced
11 - 1/4 teaspoon black pepper
12 - 1/4 teaspoon ground nutmeg (optional)
13 - Salt, to taste
→ Garnish
14 - 2 tablespoons chopped fresh parsley
15 - Extra grated Parmesan, to serve
# How to Make It:
01 - Bring a large pot of generously salted water to a rolling boil. Add the pasta and cook according to package instructions until al dente. Reserve 1/2 cup of the pasta cooking water before draining.
02 - While the pasta cooks, melt the butter with the olive oil in a large skillet over medium heat. Add the thinly sliced onions and sprinkle with the sugar and salt.
03 - Cook the onions, stirring frequently, for 25 to 30 minutes until they turn a rich golden brown and become deeply caramelized. If the onions begin to stick to the pan, add a splash of water to deglaze and continue cooking.
04 - Stir in the minced garlic and cook for 1 minute until fragrant, being careful not to let it brown.
05 - Reduce the heat to low and pour in the heavy cream and whole milk, stirring gently to combine. Add the Parmesan cheese, black pepper, and nutmeg if using. Simmer for 2 to 3 minutes until the sauce thickens slightly. Season with salt to taste.
06 - Transfer the drained pasta to the skillet and toss thoroughly to coat every strand. Add the reserved pasta water a little at a time until the sauce reaches a silky, creamy consistency that clings to the noodles.
07 - Serve immediately in warm bowls, garnished with chopped fresh parsley and an extra shower of grated Parmesan.
# Expert Tips:
01 -
- The onions practically melt into the cream sauce, creating a sweetness that feels indulgent without being heavy.
- It is one of those rare dishes that costs very little but tastes like you ordered it at a small trattoria with checkered tablecloths.
02 -
- Do not rush the onions because turning the heat up to speed things along will give you charred edges and a raw center instead of that slow, jammy sweetness.
- Saving the pasta water is not optional here since that starchy liquid is what transforms a separated sauce into something that hugs every noodle.
03 -
- Cut the onions as evenly as possible because uniform slices means they all caramelize at the same rate and you do not end up with some burnt and some still crunchy.
- The secret to a sauce that never breaks is keeping the heat low once the cream goes in and stirring constantly until the cheese is fully melted.