Name: Simple Au Gratin Potatoes
Prep time: 1 h 50 min
Cook time: 1 h 50 min
Total time: 1 h 50 min
Yield: 8
Ingredients: 3 tablespoons butter; 3 tablespoons all-purpose flour; 1 1/2 teaspoons salt; 1/8 teaspoon pepper, with more for optional garnish; 2 cups milk, not skim; 1 cup cheddar cheese, shredded; 5 cups potatoes, peeled and thinly sliced; 1/2 cup onion, chopped