In a small bowl, mix the softened butter, minced garlic, Parmesan cheese, minced parsley, salt, and optional red pepper flakes until fully combined. If making ahead, store in a small airtight container in the fridge for up to a week
4 tablespoons butter, 2 cloves garlic, 2 tablespoons Parmesan cheese, 2 tablespoons flat-leaf parsley, ¼ teaspoon fine salt, ¼ teaspoon red pepper flakes
