Instructions

  1. Boil the potatoes until they're halfway done, then cut into slices about 1/4 inch thick.
  2. Set aside.
  3. Slice three onions and sauté in butter until transparent.
  4. Sprinkle flour into this mixture and continue to sauté until flour begins to darken a little.
  5. Add milk and continue stirring until the sauce is at the consistency you like.
  6. It should be medium-thick.
  7. Add sliced potatoes to the pan and mix very well.
  8. Add salt and pepper to taste.
  9. Pour into a greased baking dish and bake casserole at 350 degrees until it turns a bit brown.