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Slow Cooker Potato and Onion Bake

Few side dishes are as comforting as a creamy potato and onion bake. When prepared in a slow cooker, this classic dish becomes even easier, allowing the potatoes to slowly absorb flavor while developing a tender, melt-in-your-mouth texture. The combination of thinly sliced potatoes, sweet onions, rich cream, and melted cheese creates a hearty accompaniment that pairs beautifully with roasted meats, grilled chicken, or even a simple salad.

This Slow Cooker Potato and Onion Bake is ideal for family dinners, holiday gatherings, or any occasion when you want a warm and satisfying dish without spending hours in the kitchen.

Why You’ll Love This Recipe

Requires minimal preparation.
Uses simple pantry ingredients.
Slow cooking creates a rich, creamy texture.
Perfect for feeding a crowd.
Can be prepared ahead of time.

Ingredients

2 pounds (900g) potatoes, peeled and thinly sliced
2 large onions, thinly sliced
2 tablespoons butter, softened
1 cup heavy cream
1 cup milk
1½ cups shredded cheddar cheese
2 cloves garlic, minced
1 teaspoon salt
½ teaspoon black pepper
½ teaspoon paprika
1 teaspoon dried thyme (optional)
Fresh parsley for garnish

Equipment Needed

Slow cooker (4 to 6-quart capacity)
Sharp knife or mandoline slicer
Mixing bowl
Measuring cups and spoons

Step 1: Prepare the Potatoes

Wash, peel, and thinly slice the potatoes. Aim for slices about ⅛ inch thick so they cook evenly. If using a mandoline slicer, exercise caution and use the safety guard.

Place the sliced potatoes in a bowl of cold water while preparing the remaining ingredients. This helps remove excess starch and prevents discoloration.

Step 2: Slice the Onions

Peel the onions and cut them into thin slices. The onions will soften during cooking and add a natural sweetness that complements the creamy potatoes.

Set the sliced onions aside.