Potato and Onion Dish

I think this would make an excellent side dish instead of a main dish, in which is the catorgory that it was put in from the Kansan`s Silver Spoon Cookbook of 1967. I made it as a side dish. Potato and Onion Dish Mrs. doretha Todd 6 large potatoes 1 large onion 1 teaspoon salt 1/2 teaspoon black pepper 1 Tablespoon butter 1/2 cup water Peel and slice potatoes and onions. place in baking dish in layers. sprinkle each layer with salt and pepper. Add water and butter. Cover and bake at 350 degrees until potatoes are soft. May be garnished with cheese