White Sauce Ingredients:
- 3 Tablespoons butter
- 2 Tablespoons all-purpose flour
- 2 Cups milk
Make a white sauce of the first 3 ingredients. Melt the butter in a small pot on stovetop low heat. Add milk and flour and raise heat to medium high. Stir until white sauce begins to thicken.
- 6 Medium potatoes, pared and thinly sliced (6 cups)
- 2 Tablespoons of diced onions
- 1 Teaspoon of salt
- 1/8 Teaspoon pepper
Use some butter to grease a 2-quart Corning-ware casserole dish/pot having a glass cover. Place half of the sliced potatoes in the casserole dish/pot. Add half of the white sauce to the potatoes in the casserole dish/pot, and sprinkle about half of the salt, pepper and diced onions over the potatoes. Create a second layer with the other half of the potatoes in the casserole dish/pot, sprinkle the remaining salt, pepper and diced onions.
Pre-heat your oven to 350 degrees F. Cover the casserole pot/dish with the glass lid and place the casserole pot/dish on the 2nd to lowest oven rack. Bake covered for 1 hour at 350 degrees. Uncover and bake an additional 30 minutes at 350 degrees.