Go Back
+ servings
Crock Pot Au Gratin Potatoes Square Image
Print Recipe
4.94 from 229 votes

Crock Pot Potato Au Gratin Recipe

Make rich and creamy Crock Pot Au Gratin Potatoes with this easy slow cooker recipe! Perfect for holidays, potlucks, or a comforting family dinner.
Prep Time15 minutes
Cook Time3 hours
Total Time3 hours 15 minutes
Course: Side Dish
Cuisine: American
Servings: 8 servings
Calories: 219kcal
Author: Julie Evink

Ingredients

  • 3 pounds russet or Yukon Gold potatoes Sliced 1/8" thick
  • 1 small onion diced
  • 4 Tablespoons butter
  • ¼ cup all purpose flour
  • 2 cups whole milk
  • 2 teaspoons garlic powder
  • salt and pepper to taste
  • 1 cup shredded Monterey Jack cheese
  • 1 cup shredded sharp cheddar cheese

Instructions

  • Wash OR peel your potatoes.  Slice to 1/8" thick, set aside. (I like to leave the peel on my potatoes)
  • Generously coat slow cooker with non-stick cooking spray.  
  • In a medium saucepan, melt the butter over medium-low heat.  Add flour and whisk to combine. Whisk in the milk, garlic powder, pepper, and a generous amount of salt. Cook, stirring frequently just until mixture starts to thicken.  Remove from heat and stir in shredded cheeses. 
  • Place 1/3 of the sliced potatoes in the bottom of the slow cooker.  Sprinkle with 1/3 of the chopped onion.  Pour 1/3 of the cheese sauce over the potatoes and onions.  Repeat this 2 more times.  Cover and cook on high for 3-4 hours or low for 4-6 hours or until potatoes are tender.  Let sit 20 minutes before serving. 

Video

Nutrition

Serving: 1 | Calories: 219kcal | Carbohydrates: 8g | Protein: 9g | Fat: 17g | Saturated Fat: 10g | Polyunsaturated Fat: 1g | Monounsaturated Fat: 4g | Trans Fat: 0.2g | Cholesterol: 49mg | Sodium: 246mg | Potassium: 149mg | Fiber: 0.4g | Sugar: 4g | Vitamin A: 524IU | Vitamin C: 1mg | Calcium: 286mg | Iron: 0.4mg