For a richer flavor, use heavy cream instead of milk. If you don't have sour cream chive dip, you can substitute plain sour cream and add a pinch of onion powder. Ensure the potatoes are sliced thinly and evenly for uniform cooking. Adjust cooking time based on your slow cooker; check for tenderness after 3 hours. The paper towel trick is crucial for preventing a soggy gratin.
Slow Cooker Potato Gratin
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PREP TIME30 mins
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COOK TIME3 hrs
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TOTAL TIME3 hrs 30 mins
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SERVING8 People
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VIEWS15
Transform humble potatoes into a decadent, cheesy masterpiece with this effortless slow cooker gratin. Perfect for freeing up oven space during holidays or potlucks, this creamy and comforting dish is guaranteed to be a crowd-pleaser.
Ingridients
Adjust Servings
Nutrition
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Carbohydrate31 g
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Cholesterol39 mg
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Fiber3 g
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Protein11 g
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Saturated Fat8 g
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Sodium472 mg
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Sugar4 g
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Fat14 g
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Unsaturated Fat0 g
Follow The Directions
01
StepPrepare the slow cooker: Line a 6-quart slow cooker with a disposable liner or generously coat with nonstick cooking spray. (5 minutes)
02
StepWhisk the base: In a medium bowl, whisk together the milk and sour cream chive dip until well combined. Set aside. (2 minutes)
03
StepCreate the cheese sauce: Melt the butter in a small saucepan over medium heat. Whisk in the flour and 1/2 teaspoon of salt. Cook, stirring constantly, for 1 minute until a smooth paste forms (a roux). Gradually whisk in the milk mixture and bring to a gentle boil over medium-high heat, whisking constantly. Reduce the heat to medium and simmer, whisking constantly, for about 1 minute until the sauce has thickened slightly. (8 minutes)
04
StepMelt the cheddar: Remove the pan from the heat and stir in the shredded cheddar cheese until completely melted and the sauce is smooth and creamy. (2 minutes)
05
StepPrepare the Parmesan mixture: In a small bowl, mix together the grated Parmesan cheese, garlic powder, remaining 1/4 teaspoon salt, and black pepper. (1 minute)
06
StepLayer the gratin: Arrange half of the potato slices in an even layer on the bottom of the prepared slow cooker. Sprinkle with half of the Parmesan mixture and half of the chopped onion. Pour half of the cheddar cheese sauce evenly over the potatoes. Repeat the layers with the remaining potato slices, Parmesan mixture, onion, and cheese sauce. (15 minutes)
07
StepCook: Cover the opening of the slow cooker completely with a layer of paper towels (this helps to absorb excess moisture). Cover with the lid and cook on HIGH for 3 to 4 hours, or until the potatoes are tender and easily pierced with a fork. Replace the paper towels halfway through the cooking time. (3-4 hours)
08
StepGarnish and serve: Once cooked, carefully remove the lid and paper towels. Garnish with the chopped fresh chives before serving. (2 minutes)
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Nolan Damore
Jun 23, 2025My potatoes were a little undercooked after 3 hours, so I cooked it for another hour and it was perfect.
Juliet Wolf
Jun 22, 2025Be careful not to overcook, or the potatoes will become mushy.
Eric Kirlin
Jun 21, 2025I added a layer of caramelized onions for extra sweetness and it was amazing!
Hester Kshlerin
Jun 20, 2025This is now my go-to recipe for potato gratin. So easy and delicious!
Lupe Bernhard
Jun 13, 2025I used a mandoline to slice the potatoes and it made the layering process much faster.
Eveline Rath
May 27, 2025I didn't have any paper towels, so I just left the lid slightly ajar and it worked fine.
Yazmin Beer
May 23, 2025This recipe was a lifesaver during Thanksgiving! It freed up my oven and everyone loved it.
Arjun Parkerklocko
May 11, 2025The cheese sauce is so creamy and flavorful. I'll definitely be making this again.