1 pound Brussels sprouts, trimmed and thinly sliced
2 tablespoons olive oil
6 tablespoons unsalted butter
4 cloves garlic, thinly sliced
1/4 teaspoon crushed red pepper flakes, optional
1/3 cup grated parmesan cheese, plus extra for serving
Zest of 1 lemon
1 tablespoon fresh lemon juice
Freshly ground black pepper, to taste
Salt, to taste
1/4 cup toasted walnuts or pecans, roughly chopped, optional
Chopped fresh parsley, optional
Instructions
Bring a large pot of salted water to a boil. Cook the spaghetti or linguine according to package instructions until al dente. Reserve 1 cup of the cooking water, then drain the pasta.
In the same skillet, reduce heat to medium. Add unsalted butter and cook, stirring frequently, until it foams and turns golden brown with a nutty aroma, about 3 to 4 minutes.
Add grated parmesan, lemon zest, lemon juice, and a splash of reserved pasta water. Toss until pasta is evenly coated with the sauce, adding more pasta water as needed for desired consistency.
Season with additional salt and freshly ground black pepper to taste. Serve immediately, topped with extra parmesan, toasted nuts, and chopped parsley if desired.
Notes
For a vegetarian option, ensure the parmesan cheese is rennet-free.
Feel free to adjust the amount of red pepper flakes according to your spice preference.
Other nuts like hazelnuts can also be used for garnishing.