Caramelized Onion Cream Pasta (Printable)
Velvety pasta with golden caramelized onions swirled in a rich Parmesan cream sauce
# 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 directions until al dente. Reserve 1/2 cup of the starchy cooking water before draining through a colander.
02 - While the pasta cooks, melt the butter with olive oil in a large skillet set over medium heat. Add the thinly sliced onions and season with sugar and salt, tossing to coat evenly.
03 - Continue cooking the onions for 25 to 30 minutes, stirring frequently, until they turn a rich golden brown and become deeply caramelized. If the onions begin to stick to the pan, deglaze with a splash of water and continue cooking.
04 - Add the minced garlic to the caramelized onions and stir for about 1 minute until fragrant and softened.
05 - Reduce the heat to low and pour in the heavy cream and whole milk, stirring gently to combine. Fold in the grated Parmesan cheese, black pepper, and nutmeg if using. Let the sauce simmer for 2 to 3 minutes until it thickens slightly and coats the back of a spoon. Season with salt to taste.
06 - Transfer the drained pasta into the skillet with the cream sauce. Toss thoroughly, adding small amounts of the reserved pasta water as needed until the sauce becomes silky and clings evenly to every strand.
07 - Divide among warm plates immediately. Finish each portion with a sprinkle of chopped fresh parsley and an extra shower of grated Parmesan.
# Expert Tips:
01 -
- The onions practically cook themselves while you pour a glass of wine and decompress from the day.
- That golden, jammy onion flavor folded into cream sauce tastes like something you would pay good money for at a cozy trattoria.
- It uses everyday pantry ingredients but delivers a meal that feels deeply special every single time.
02 -
- Do not rush the caramelization step, because turning up the heat will give you burnt edges and raw centers instead of that slow, sweet transformation.
- Reserving pasta water is not optional here, because that starchy liquid is what binds the cream and cheese into a glossy sauce instead of a greasy puddle.
03 -
- Grate your Parmesan from a wedge rather than using the pre shredded kind, because anti caking agents on store bought grated cheese prevent it from melting smoothly into the sauce.
- Warm your serving bowls in a low oven for a few minutes before plating, because cream sauce cools quickly and a warm bowl keeps everything silky from the first bite to the last.