01 -
Place a small saucepan on medium heat and melt the butter completely.
02 -
Add the finely chopped garlic to the melted butter and cook for about 30 seconds until fragrant but not browned.
03 -
Add the flour, ground black pepper, salt, and oregano to the pan. Whisk continuously until a smooth paste forms and cook for 1-2 minutes to remove the raw flour taste.
04 -
Slowly pour in the milk while whisking continuously. Stir until the sauce thickens and becomes smooth.
05 -
Remove the pan from heat and mix in the grated Parmesan until fully melted and the sauce is creamy.
06 -
Use immediately as a pizza topping or allow to cool and store in an airtight container in the refrigerator.