the cheesy goodness from sticking to the sides and ensure a smooth cleanup afterward.
Step 2: Prepare the Sauce
In a medium saucepan over medium heat, melt the butter. Once melted, whisk in the flour, and cook for 1-2 minutes, stirring constantly, to form a roux (this is what will thicken the sauce).
Gradually add the milk, whisking constantly to prevent continue reading …