Combine soup, milk and onions. ... half the sliced potatoes into a 2 quart casserole. ... uncovered for 10 minutes longer or until potatoes are tender.
Melt butter in saucepan on ... to tepid. Slice potatoes 1/4 inch thick and layer ... baking pan. Serve au gratin mix with pepper and salt ... 10-12 minutes until bubbling.
Ingredients: 9 (crumbs .. flour .. potatoes .. salt ...)