01 -
Place a small pan on medium heat, letting the butter melt completely until it's liquid.
02 -
Toss in the minced garlic and stir around for about 30 seconds. It should smell great and soften a bit, but don't let it darken.
03 -
Add flour, oregano, salt, and pepper to the pan. Stir nonstop until it forms a thick paste. Keep going for 1–2 minutes to cook off the raw flour flavor.
04 -
Slowly stream in the milk while stirring all the time. Keep mixing until the sauce starts to thicken and turns silky smooth.
05 -
Take the pan off the heat. Mix in the Parmesan cheese and keep stirring till it's fully blended and the sauce is creamy.
06 -
Use the sauce immediately to top your pizza, or let it cool before sealing it in a container to refrigerate.