My sister-in-law begged for this recipe after Easter dinner. It only takes 4 ingredients and turns out perfectly creamy every time

This Slow Cooker 4-Ingredient Cheesy Scalloped Potatoes recipe is a brilliant shortcut to a classic side dish. By using dry onion soup mix, you bypass the need for chopping onions and measuring out multiple spices; the mix provides all the salt, onion flavor, and savory depth needed. The heavy cream combines with the starch from the potatoes to create a naturally thick, velvety sauce that is far more decadent than traditional flour-based versions.

Slow Cooker Cheesy Scalloped Potatoes

Ingredients:

How To Make Slow Cooker Cheesy Scalloped Potatoes:

Step 1: The Creamy Base: In a medium bowl, whisk the heavy cream and the dry onion soup mix together until the powder is fully dissolved.

Tip: Let this mixture sit for a few minutes while you prep the potatoes. This allows the dried onion pieces in the soup mix to start hydrating, ensuring they soften properly during the slow cook.

Step 2: Slice and Layer: Peel your potatoes and slice them into thin 1/8-inch rounds. Grease your 5–6 quart slow cooker. Layer the potatoes like shingles on the bottom, sprinkle with 3/4 cup of cheese, and drizzle with 1/2 cup of the cream mixture. Repeat these layers until you’ve used all ingredients, finishing with a final layer of cheese.

Step 3: The Slow Cook: Cover and cook on HIGH for 3.5/4.5 hours or LOW for 6/7 hours. The potatoes are ready when they are fork-tender and the sauce is bubbling and thick.

Step 4: The Final Melt: If you reserved any cheese, sprinkle it over the top during the last 20/30 minutes of cooking.

Step 5: The “Set” Period: Turn the slow cooker to WARM and let the potatoes rest for 10/15 minutes before serving.

Tip: Do not skip the rest! Because this recipe uses heavy cream rather than a flour roux, the sauce needs those few minutes of cooling to “grip” the potatoes, or it will be too thin when you scoop it out.