Macaroni and Cheese

1/2-3/4 lb elbow macaroni
1 lb sharp cheddar cheese cubed (approx. 2 cups)
3 Tbs. Butter
2 Tbs. Flour
1/2 tsp. salt
pepper as desired
2 cups milk

Cook noodles according to package directions.
Melt butter on low heat. Add flour to make paste. Add salt and pepper. On high heat, slowly add milk a bit at a time. Stir constantly until think and bubbly. Add cheese, stir until melted. Remove from heat. Pour cheese sauce into greased baking dish (I use a pyrex bowl that is oven safe.) Add cooked noodles until there is just a little more cheese sauce than noodles. Bake at 350 for 35 minutes.

Variations:
Use 3 T olive oil instead of butter
Add 1-2 cups cubed ham
Top with Bread crumbs
Use fun shaped noodles
Use pepper jack cheese for a spicy kick