Bring a large pot of salted water to a boil over high heat. Add pasta and cook according to package instructions until al dente, usually about 8–10 minutes. Reserve a cup of pasta water, then drain the pasta and set aside.

Heat olive oil in a large skillet over medium heat. Add minced garlic and sauté for 1–2 minutes until fragrant and lightly golden.

Reduce heat to low and pour in heavy cream, stirring to combine with garlic. Add Parmesan cheese, mixing continuously until melted and sauce is creamy. Adjust sauce thickness with reserved pasta water as needed.

Add drained pasta to skillet, tossing to coat in sauce. Allow to absorb sauce on low heat for 1–2 minutes.

Season with salt, pepper, and optional red pepper flakes. Let it sit for a minute before serving.

Plate the pasta hot, garnishing with additional Parmesan and black pepper. Serve with garlic bread or salad.