Before You Begin
Preheat and prepare your cookware as needed. Cooking times and results may vary depending on your equipment and ingredients.
Cook the Pasta
Bring a large pot of salted water to a boil. Add pasta and cook until tender but still slightly firm (al dente), according to package timing. Reserve ½ cup of pasta cooking water, then drain.
Sauté the Garlic
Heat olive oil in a large skillet over low to medium heat. Add garlic and cook about 1–2 minutes until fragrant. Do not allow it to brown.
Build the Sauce
Add heavy cream and butter. Stir and simmer gently for about 3–5 minutes until slightly thickened.
Melt the Cheese
Reduce heat to low. Gradually add Parmesan while stirring continuously until smooth. Add small amounts of reserved pasta water as needed to adjust consistency.
Combine Pasta and Sauce
Add drained pasta to the skillet. Toss gently until evenly coated. Season with salt, pepper, and optional red pepper flakes.
Serve
Garnish with parsley and additional Parmesan if desired. Serve immediately while hot.