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Plate with a serving of au gratin potatoes on it ready to serve.
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5 from 1 vote

Crockpot Au Gratin Potatoes

These Crockpot Au Gratin Potatoes are tender, cheesy, and slow cooked in a creamy sauce. They make a great side dish for your holiday melals.
Prep Time25 minutes
Cook Time5 hours
Total Time5 hours 25 minutes
Course: Dinner
Cuisine: American
Servings: 6 Servings
Calories: 363kcal
Author: Wendy

Equipment

  • sharp knife or mandolin
  • 6 quart or larger slow cooker
  • medium saucepan

Ingredients

  • 4 large russet potatoes peeled and thinly sliced
  • 1 small onion finely chopped
  • 2 cups shredded cheddar cheese
  • 1 cup heavy cream
  • 1 cup milk
  • 2 tablespoons butter
  • 2 tablespoons all-purpose flour
  • 1 teaspoon garlic powder
  • ½ teaspoon paprika
  • Salt and pepper to taste
  • Fresh parsley for garnish optional

Instructions

  • Grease the inside of your crockpot with butter or cooking spray.
  • In a saucepan over medium heat, melt the butter and whisk in the flour.
  • Cook for 1-2 minutes, then gradually add the milk and heavy cream, stirring constantly until the sauce thickens.
  • Remove the sauce from heat and stir in 1 1/2 cups of cheddar cheese, garlic powder, paprika, salt, and pepper. Set aside.
  • Layer half of the sliced potatoes in the bottom of the crockpot, followed by half of the chopped onions.
  • Pour half of the cheese sauce over the potatoes and onions.
  • Repeat with the remaining potatoes, onions, and cheese sauce.
  • Cover and cook on low for 4-5 hours, until the potatoes are tender.
  • In the last 30 minutes of cooking, sprinkle the remaining cheddar cheese on top.
  • Allow it to melt before serving.
  • Garnish with parsley if desired.

Notes

Any nutritional data I provide is an approximation and actual dietary information can vary based on ingredients and proportion sizes.

Nutrition

Serving: 1Serving | Calories: 363kcal | Carbohydrates: 8g | Protein: 12g | Fat: 32g | Saturated Fat: 20g | Polyunsaturated Fat: 1g | Monounsaturated Fat: 8g | Trans Fat: 0.2g | Cholesterol: 97mg | Sodium: 497mg | Potassium: 161mg | Fiber: 0.4g | Sugar: 4g | Vitamin A: 1225IU | Vitamin C: 1mg | Calcium: 348mg | Iron: 0.3mg