Macaroni and Cheese

http://www.food.com/recipe/macaroni-and-cheese-52799

1 (16 oz) PKG Elbow Macaroni, Cooked
1/2 C Butter
1 t Salt
Pepper, To Taste
1/2 C Flour
3 1/2 C Milk
1 LB Cheese, Cubed or Grated
Breadcrumbs, Croutons, or Chips To Taste, Optional

Preheat oven to 350 degrees.

In a pan cook butter, salt, pepper and flour and stir until smooth.

Remove from heat add milk, return to heat and bring to a boil.

Boil 1 minute.

Remove from heat and add cheese, stir until melted.

Pour over elbows, sprinkle with optional Topping and bake at 350 degrees for 30 minutes.