Cheesy Au Gratin Potatoes

Get ready for your family to devour these Cheesy Au Gratin Potatoes. They are cheesy, creamy, yummy potatoes. They will instantly become a family favorite.




  2. Preheat oven to 400 degrees.
  3. Spray a large casserole dish with non-stick cooking spray.
  4. Start with potatoes and place a layer covering the bottom of the dish, next layer with onions, again with a layer of potatoes and continue until all onions and potatoes are in the casserole dish. Set aside.
  5. In a saucepan on the stovetop, melt butter on medium, add flour and whisk, about 2 minutes, add milk and continue whisking constantly until the mixture begins to thicken (this may take 3-5 minutes).
  6. Add dry mustard, ground sage, and nutmeg.
  7. Add the cheese and once the cheese is fully incorporated, remove from heat.
  8. Pour the cheese mixture over the potato/onion layers.
  9. Cover with foil and bake for 1.5 hours.
  10. Remove from oven, remove foil, and place it back into the oven on broil until they brown.

Keywords: Holiday side dish, cheesy potatoes