Bring a pot of salted water to a boil and cook pasta according to package instructions.
While the pasta cooks, melt the butter in a large skillet over medium heat.
Add the heavy cream to the butter and bring to a gentle simmer.
Stir in the grated Parmesan cheese until fully melted and incorporated.
Season the sauce with salt and pepper to taste.
Drain the cooked pasta and immediately add it to the sauce, tossing to coat.
Cook everything together for an additional minute, allowing pasta to absorb some sauce flavor.
Serve immediately, garnishing with parsley if desired.
