Step 1: Making the Potatoes Au Gratin!
This potato dish is easy to prepare, and your family will LOVE it.
3 or 4 medium russet potatoes, sliced
1/2 small onion, sliced into rings
about 3/4 cup milk, more may be needed
about 1/2 cup chedder cheese, cut into squares
Preheat the oven to 400. Layer half of the potatoes in a glass "meatloaf" dish. Add on half of the onions. Add the other half of the potatoes and the other onions. Sprinkle the top with salt and pepper.
Make the cheese sauce: Melt the butter in a small pot on medium. Add in the flour and stir until well combined. Let cook for a minute to cook out the floury taste. Add in half of the milk and stir until it is all combined. Add in the cheese and a little more of the milk. Stir until all the cheese is melted and the mixture is smooth. Add in some pepper and a little salt and stir again. Add in the rest of the milk and more, if desired, and stir...again. When the mixture's thickness is where you want it, take it off the heat and pour it over the potatoes and onions. Cook in the oven at 400 until potatoes are fork tender, about 40 minutes.