Ingredients
1/4 cup all-purpose flour1/2 teaspoon salt2-1/2 cups 2% milk2 garlic cloves, minced2 teaspoons butter1 cup shredded cheddar cheese8 thin slices onion4 medium potatoes (about 1-1/2 pounds), peeled and thinly sliced
Preparation
Preheat oven to 350°. In a heavy saucepan, mix flour, salt and milk until smooth. Add garlic and butter; bring to a boil. Cook and stir until thickened, 1-2 minutes. Remove from heat; stir in cheese until melted.
In a greased 8-in. or 1-1/2-qt. baking dish, layer onion and potatoes. Top with sauce.
Bake, covered, 25 minutes. Uncover; bake until potatoes are tender, 40-45 minutes.