Grandma Barbara's Cheesy Potatoes
extra sharp cheddar cheese
Preheat oven to 350 degrees F. While oven is heating, cook potatoes in their skins in a large pot of boiling water just until cooked through. Peel and grate.
Heat milk and cream in a saucepan and gently add cheese until it’s thoroughly melted. Add mustard, salt and pepper.
Spray a 9x13-inch pan with cooking spray. Add potatoes, and pour cheese sauce over top. Bake covered for about an hour. Toward the last 10 minutes uncover to slightly brown top.
Please note, I divided this recipe into two batches, freezing half for later. That's why I used an 8x8-inch pan (the other is in the freezer, and has a bit less than half the recipe in it. FYI)