Bring a large pot of salted water to a boil and cook pasta until al dente according to package instructions Reserve ¼ cup of pasta water then drain and set aside
In a large skillet over medium heat melt butter then add minced garlic and sauté for 30 to 40 seconds until fragrant Be careful not to burn it
Stir in olive oil and red pepper flakes then pour in the reserved pasta water stirring continuously to create a smooth sauce
Add the drained pasta to the skillet tossing to coat evenly in the garlic butter sauce If needed add more pasta water one tablespoon at a time to reach the desired consistency
Season with salt and black pepper to taste then sprinkle in Parmesan cheese and toss until well combined and melted into the sauce
Remove from heat garnish with freshly chopped parsley and extra Parmesan cheese if desired
Serve immediately and enjoy