Au Gratin Potatoes Recipe with Boursin and TomaTruffle
 
Prep time
Cook time
Total time
 
My family is obsessed with this ultra creamy, cheesy Au Gratin Potatoes Recipe. Baked until golden and with crispy edges, ahhh perfection!
Serves: 8
Ingredients
  • 6 Yellow Potatoes, sliced thin (about 2.5 lbs)
  • ½ Yellow Onion, sliced thin
  • 2 tbsp. Butter
  • 2 tbsp. Flour
  • 1 cup Heavy Cream
  • 1 tsp. Dry Ground Mustard
  • 1 (5.2 oz) Garlic & Herb Boursin Cheese
  • 6 oz TomaTruffle Cheese, shredded
  • 2 tsp. Salt
  • 2 tsp. Black Pepper
  • 1 cup Shredded Mozzarella Cheese
  • 3 tbsp. Grated Parmesan
Instructions
  1. Preheat the oven to 400F.
  2. Slice the onion and set aside. Wash and thinly slice the potatoes.
  3. Melt butter in a stockpot and then add the flour. Whisk together and cook for 3 minutes. Then add the heavy cream, dry ground mustard, and continue to whisk over medium heat until bubbly. Remove from heat and add the Boursin and TomaTruffle cheeses. Continue to mix until melted and thickened.
  4. Layer half of the potatoes in a greased 9x13 baking dish. Then evenly add a layer of sliced onions, sprinkle with 1 teaspoon each of salt and pepper, and top with half of the cheese sauce.
  5. Add second layer of potatoes, sprinkle with remaining salt and pepper, then top with remaining cheese sauce. Sprinkle with shredded mozzarella and parmesan. Cover with foil (sprayed with cooking spray so the cheese doesn't stick) and bake for 1 hour. Then remove the foil and bake for an additional 25. For a crispy exterior, turn the broiler on for 5 minutes at the end before removing from the oven.
  6. Allow the potatoes to cool for at least 15 - 20 minutes before serving.
Recipe by Slice of Jess at https://sliceofjess.com/au-gratin-potatoes-recipe-with-boursin-and-tomatruffle/