Looking for a comforting, hands-off side dish? These Slow Cooker Au Gratin Potatoes hit the mark! Perfectly tender potatoes layered with a rich cheese sauce, all cooked in a slow cooker.
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Table of contents
Ideal for busy parents or holiday gatherings. Let your slow cooker do the work while you take care of other things.
More slow cooker recipes you might enjoy are this simple Chuck Roast with Vegetables, these Chicken Enchiladas in the slow cooker, and this smokey Pulled Pork.
Recipe Ingredients
- Russet Potatoes
- Onion
- Butter
- Flour
- Milk
- Heavy Cream
- Cheddar Cheese
- Garlic Powder
- Paprika
- Salt & Pepper
Substitutions
- Cheese: Swap cheddar for Gruyere, Monterey Jack, pepper Jack, or mozzarella for a different flavor profile.
- Milk & Cream: Use half-and-half if that’s what you have on hand. For a lighter version, try whole milk.
- Russet Potatoes: Yukon Gold potatoes work well too, and they’ll bring a buttery texture to the dish.
Recipe Instructions
Prepare the slow cooker by for the Au Gratin Potatoes by spraying it with non-stick cooking spray.
Finely dice the onion.
Wash and peel the potatoes. Thinly slice. Using a Mandoline Slicer really helps to make this a simple job. The thicker the slices, the longer the potatoes will take to cook. I cut my potatoes to about ⅛ of an inch thick.
- Step 1: In a saucepan over medium heat, melt the butter and whisk in the flour. Cook for 1-2 minutes.
- Step 2: Slowly add the milk and heavy cream, stirring constantly until the sauce thickens.
- Step 3: Remove from heat and stir in 1½ cups of cheese, stir until melted.
- Step 4: Add the garlic powder, paprika, salt, and pepper. Stir. Taste, adjust seasonings if necessary.
- Step 5: Layer half of the potatoes into the prepared slow cooker. Top with half the diced onion, half the cheese sauce, then repeat.
- Step 6: Cover and cook on low for 4-5 hours until the potatoes are tender. In the last 30 minutes top with the remaining shredded cheese. Top the finished Au Gratin Potatoes with chopped parsley.
Storage & Reheating
Store leftovers in an airtight container in the fridge for up to 3 days. Reheat in the microwave or oven for best results.
Mom Tip
The holidays are stressful enough! Simple recipes like these Slow Cooker Au Gratin Potatoes makes the holiday meal so much easier to prepare. And, the cream, cheesy potatoes are loved by young and old alike!
Other side dish recipes you might like
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Recipe
Slow Cooker Au Gratin Potatoes
Equipment
- 1 Slow Cooker / Crock Pot
Ingredients
- 4 pounds Russet Potatoes large, peeled and thinly sliced
- 1 Onion small, finely chopped
- 2 cups Cheddar Cheese shredded
- 1 cup Heavy Cream
- 1 cup Milk
- 2 tablespoons Butter
- 2 tablespoons All-Purpose Flour
- 1 teaspoon Garlic Powder
- ½ teaspoon Paprika
- ¾ teaspoon Salt
- ½ teaspoon Black Pepper
- Fresh Parsley
Instructions
- Prepare the slow cooker by for the Au Gratin Potatoes by spraying it with non-stick cooking spray.
- Finely dice the onion.
- Wash and peel the potatoes. Thinly slice.
- In a saucepan over medium heat, melt the butter and whisk in the flour. Cook for 1-2 minutes.
- Slowly add the milk and heavy cream, stirring constantly until the sauce thickens.
- Remove from heat and stir in 1½ cups of cheese, stir until melted.
- Add the garlic powder, paprika, salt, and pepper. Stir. Taste, adjust seasonings if necessary.
- Layer half of the potatoes into the prepared slow cooker. Top with half the diced onion, half the cheese sauce, then repeat.
- Cover and cook on low for 4-5 hours until the potatoes are tender. In the last 30 minutes top with the remaining shredded cheese. Top the finished Au Gratin Potatoes with chopped parsley.
Notes
- Cheese: Swap cheddar for Gruyere, Monterey Jack, pepper Jack, or mozzarella for a different flavor profile.
- Milk & Cream: Use half-and-half if that’s what you have on hand. For a lighter version, try whole milk.
- Russet Potatoes: Yukon Gold potatoes work well too, and they’ll bring a buttery texture to the dish.
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