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–+ servings
smoked au gratin potatoes in cast iron skillet on wood table
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Traeger Cheesy Au Gratin Potatoes

Layers of thin sliced potatoes baked with cream and shredded cheese for a heavenly comfort food dish.
Prep Time10 minutes
Cook Time1 hour
Total Time1 hour 10 minutes
Course: Side Dish
Cuisine: American
Keyword: au gratin potatoes, traeger grill
Servings: 6
Calories: 320kcal

Equipment

Ingredients

  • 3 cups russet potatoes
  • 1 ¼ cups heavy cream
  • 1 ½ cups shredded cheese cheddar, gruyere, gouda or a combination
  • 4 slices bacon diced, cooked, and drained of grease
  • 1 teaspoon mustard powder
  • ½ teaspoon onion powder
  • 1 teaspoon salt
  • ½ pepper

Instructions

  • Set your Traeger pellet grill to 375F. Close the lid and preheat the grill for 15 minutes.
  • While the grill preheats, wash, peel, and slice the potatoes to ⅛" on a mandolin.
  • Measure the heavy cream and season it with mustard powder, salt, and pepper. Shred and measure the cheese. Set those aside.
  • Rub the bottom of the cast iron skillet with a thin coating of butter.
  • Pour ⅓ cup of heavy cream in the bottom of the pan and spread it out evenly.
  • Place 2 layers of sliced potatoes, half of the shredded cheese, and another ⅓ of the cream.
  • Repeat for a second layer of potatoes, cheese, and cream.
  • Place the cast iron skillet directly on the grill grates and close the lid. Cook uncovered for 45 minutes. The potatoes should be fork tender and the top layer of cheese should be slightly golden brown.
  • Remove from the Traeger and allow to cool for 10 minutes before serving.

Nutrition

Calories: 320kcal | Carbohydrates: 16g | Protein: 9g | Fat: 25g | Saturated Fat: 15g | Polyunsaturated Fat: 1g | Monounsaturated Fat: 7g | Cholesterol: 79mg | Sodium: 581mg | Potassium: 386mg | Fiber: 1g | Sugar: 2g | Vitamin A: 919IU | Vitamin C: 5mg | Calcium: 186mg | Iron: 1mg