Melt 2 tbsp of butter in a microwavable safe bowl.
Add olive oil, minced garlic, mayo, freshly grated Parmesan cheese, lemon juice, and milk to the bowl.
Season with salt, pepper, Italian seasoning, garlic powder, onion powder, and red pepper flakes.
Use a whisk to stir all of the ingredients together well.
Store the homemade sauce in an air tight container in the refrigerator.
