It's what's for dinner

I must say I have tried many variations and recipes for homemade macaroni and cheese and this one is by far our favorite!

2 T. cornstarch
1 t. salt
1/4 t. pepper
2 1/2 c. milk
2 T. butter
2 c. shredded cheddar cheese
1 (8oz) elbow macaroni, cooked
1 c. diced ham

In pan combine the first 4 ingredients. Add butter and stir constantly. Bring to a boil and boil 1 minute. Remove from heat. Stir in cheese, add drained macaroni and pour into a greased dish. Stir in ham. Bake uncovered at 375 for 25 minutes.