Slow Cooker Scalloped Potatoes are a comforting and creamy side dish made with thinly sliced potatoes layered with a rich, cheesy sauce. Cooking them in the slow cooker saves oven space and ensures perfectly tender, melt-in-your-mouth potatoes. Whether you’re preparing a family dinner, holiday meal, or potluck dish, these scalloped potatoes are a guaranteed hit.
🧀 Ingredients
For 6–8 servings:
- 6 medium potatoes (Yukon Gold or Russet), peeled and thinly sliced
- 1 medium onion, thinly sliced
- 3 tbsp butter
- 3 tbsp all-purpose flour
- 2 cups milk (whole milk or 2%)
- 1 cup heavy cream (optional for extra creaminess)
- 2 cups shredded cheddar cheese (sharp or mild, divided)
- ½ cup grated Parmesan cheese
- 1 tsp garlic powder
- 1 tsp salt
- ½ tsp black pepper
- ½ tsp paprika (optional, for color)
- Chopped parsley (for garnish)
👩🍳 How to Make Slow Cooker Scalloped Potatoes
Step 1: Prepare the sauce
- In a medium saucepan, melt butter over medium heat.
- Whisk in the flour and cook for 1 minute until it forms a paste (roux).
- Gradually whisk in the milk and cream, stirring constantly until the mixture thickens (about 3–5 minutes).
- Add 1½ cups cheddar cheese, Parmesan, garlic powder, salt, pepper, and paprika.
- Stir until the cheese melts and the sauce is smooth.
Step 2: Layer the potatoes
- Lightly grease the slow cooker with butter or nonstick spray.
- Layer half of the sliced potatoes evenly on the bottom.
- Add half of the sliced onions and pour half of the cheese sauce over them.
- Repeat with the remaining potatoes, onions, and sauce.
- Sprinkle the top with the remaining cheddar cheese.
Step 3: Cook
- Cover and cook on LOW for 5–6 hours, or until the potatoes are tender and the sauce is bubbly.
- Avoid opening the lid too often—it can release heat and slow down cooking.
Step 4: Serve
- Garnish with chopped parsley before serving.
- For a golden top, transfer to an oven-safe dish and broil for 3–5 minutes.
🍽️ What to Serve With Scalloped Potatoes
These creamy potatoes pair beautifully with:
- Roast beef, ham, or grilled chicken
- Steamed vegetables or a fresh green salad
- Slow Cooker Pot Roast or Garlic Butter Beef Bites
💡 Tips & Variations
- Add bacon: Sprinkle cooked, crumbled bacon between layers for a smoky flavor.
- Extra cheese: Mix in mozzarella or Gruyère for a richer taste.
- Make ahead: Slice the potatoes and prep the sauce up to a day ahead; store separately in the fridge.
- Creamier texture: Use heavy cream instead of milk or half-and-half.
