Thanksgiving Potato Apple Gratin

A simple but delicious and satisfying Potato Apple Gratin that’s sure to win over your Thanksgiving guests this year! Made with creamy layers of potatoes, apples, and onions, with gruyere cheese crisped on top.



  1. Preheat oven to 350F
  2. Slice russet potatoes, granny smith apples and onion thinly (I used a mandoline to slice mine easily and very thinly. I didn’t peel my potatoes or apples for that reason but feel free to peel yours if you prefer)
  3. In a medium sized pot on low, heat butter until fully melted. Add in flour and combine allowing to cook for 1-2 minutes, then stirring in cream and milk allow to simmer until mixture thickens slightly and remove from heat.
  4. Spray a large oven proof baking dish Marin 10 x 13.75 White Baker with Handles with cooking spray and begin to layer potatoes, sliced onion, apple, pouring over a third of the cream sauce, seasoning with salt and pepper and shredded gruyere cheese and repeat for a total of three layers
  5. Place baking dish in oven and allow to cook for approximately 45 minutes or until fully tender and cooked through. Top should be nice and golden crisp, if not, you can let it sit for 3-5 minutes under broil watching to make sure it doesn’t over cook.
  6. Remove and allow to sit before serving right out of the dish with a serving spoon. Season with extra salt and pepper and some fresh thyme