Ingredients

Instructions

  1. Set oven to 400 degrees.
  2. Butter a 13 x 9-inch baking dish.
  3. Cook the sliced potatoes in boiling water for about 5 minutes; drain.
  4. Layer one-third of the partially-cooked potatoes in bottom of the baking dish, then one-third of onion slices, then one-third of the cheese slices.
  5. Sprinkle with salt and pepper, then repeat layers two more times.
  6. Sprinkle top with the shredded cheddar.
  7. For the sauce; in a medium heavy saucepan melt butter over low heat.
  8. Add in flour and cayenne then stir for 1 minute.
  9. Slowly add in milk; whisk or stir until bubbly and thickened (about 3 minutes).
  10. Pour the sauce over the cheese and potato mixture.
  11. Bake for about 35 minutes or until golden.
  12. Let stand for 10 minutes before serving.