Au Gratin Potatoes
Ingredients 6 russet potatoes (medium, 3-4 inch, peeled and sliced into 1/4 inch slices) 1 cup onion (chopped) 2 tablespoons margarine 4 tablespoons flour 1 teaspoon salt dash black pepper 1 1/2 cups cheddar cheese, mild shredded 2 cups milk,…