Macaroni And Cheese - cooking recipe

Ingredients

1 1/2 c. cooked elbow macaroni
3 Tbsp. butter
2 Tbsp. flour
1/2 tsp. salt
dash of pepper
2 c. milk
1/4 c. chopped onion (optional)
8 oz. Velveeta cheese, cubed

Preparation

Cook macaroni in boiling, salted water until tender.
Drain.