Ingredients

  • 4 small-ish red potatoes, grated, skin on (about a pound)
  • 1 small-ish white onion, diced fine
  • 4 hearty stalks of celery, diced
  • 1 green apple, grated, skin on
  • 6 ounces sharp cheddar, grated
  • 2.5 ounces parmesan, grated
  • 1/2 cup creme fraiche
  • 1/2 cup whole milk
  • 5 tablespoons stone ground mustard
  • black pepper
  • salt
  • butter, for your pan

Method

  • Preheat your oven to 350° and grate! (I grate the potatoes and apple on the widest tooth option my mandolin has, but very thin.)
  • Combine the potatoes, onion, celery, apple, and onion in a large mixing bowl. I use my hands.
  • In a separate bowl, with a whisk or spatula, mixe the creme fraiche, mustard, milk, pepper and salt to taste (I go heavy on the pepper, maybe 2 tablespoons).
  • Pour the creamy stuff onto the raw stuff, and mix it. I use a spatula.
  • Into a buttered baking dish (I use a round one, but my mother uses a 9X9 and gets delicious crispy corners), pour half the the mixture. Layer half the grated cheese into the dish. Finish with a second layer of the mixture, and finish off with the cheese.
  • Bake at 350° for 55-60 minutes, until browning and bubbling.