4 lg. potatoes, diced
1-2 tbsp. butter
Salt & pepper
1/2 pkg. dry onion soup mix
Heavy foil

Line a medium baking dish with foil using enough to cover top too. Put in diced potatoes, salt and pepper. Dot with butter and sprinkle with soup mix. Close foil and seal tightly. Bake at 375 degrees for 1 hour and 30 minutes.