Classic Macaroni and Cheese

Cooking Steps
Step 2 
Melt butter in a pot set over medium heat. Add flour; cook, stirring, for 3 to 4 minutes. Gradually whisk in milk; cook, stirring constantly, until just thickened.

Melt butter in a pot set over medium heat. Add flour; cook, stirring, for 3 to 4 minutes. Gradually whisk in milk; cook, stirring constantly, until just thickened.