Scalloped Potatoes - cooking recipe

Ingredients

1 qt. potatoes, thinly sliced (4 or 5)
3 Tbsp. margarine
1 onion, chopped fine
salt and pepper to taste
1/2 lb. Cheddar cheese, grated
2 Tbsp. flour
1 1/2 c. milk

Preparation

Melt butter on low and saute onions.
Add flour and milk and mix together and cool until slightly thick.
Butter baking dish and put a layer of potatoes on the bottom.
Add white sauce, salt and pepper to taste.
Add grated cheese.
Layer until dish is filled; top with grated cheese.
Bake at 350\u00b0 for one hour and thirty minutes.