No Bake Homemade Mac-N-Cheese - cooking recipe

Ingredients

16 ounces elbow macaroni (cooked)
1/4 cup butter or 1/4 cup margarine
1/2 teaspoon salt
1/4 teaspoon white pepper (I'm sure black pepper would be fine too)
1/4 cup flour
1 3/4 cups milk
1 lb Velveeta cheese (cubed)
mustard
shredded cheddar cheese

Preparation

In a pan cook butter, salt, pepper, and flour and stir until smooth.
Remove from heat and add milk, return to heat and bring to a boil.
Boil 1 minute. You should notice it start to thicken.
Remove from heat and add cheese, stir until melted. This is where I add the mustard and shredded cheddar to taste. Start small and add until you get the extra flavor that you like.
Pour over noodles, stir, and serve.