This Creamy Au Gratin Potatoes recipe brings the rich, cheesy comfort of a classic French gratin—without ever turning on your oven. Thinly sliced Yukon Golds simmer in a velvety cream sauce with garlic and thyme, layered with Gruyère and cheddar, all cooked low and slow until tender and luxuriously creamy.
With just 7 simple ingredients and zero stirring required, it’s the perfect make-ahead side for holidays, potlucks, or any dinner where you want elegance without effort.
Why You’ll Love This Recipe
- 🥔 Only 7 ingredients—pantry staples!
- ⏱️ 15 minutes prep, then walk away
- 💛 One slow cooker = easy cleanup
- 💸 Costs under $9—feeds 8 generously
- 🌾 Naturally nut-free & gluten-free (use GF broth if needed)
Ingredients You’ll Need
(6-quart slow cooker; serves 8)
- 3 lbs Yukon Gold potatoes, peeled and thinly sliced (⅛-inch thick)
- 2 cups heavy cream (or half-and-half for lighter texture)
- 1 cup chicken or vegetable broth
- 2 cloves garlic, minced
- 1 tsp fresh thyme leaves (or ½ tsp dried)
- 2 cups shredded Gruyère cheese, divided
- 1 cup shredded sharp cheddar cheese
- Salt & black pepper to taste
- Optional: Pinch of nutmeg, 2 tbsp butter for topping
💡 Pro Tips:
- Use a mandoline for even, paper-thin slices—key for tender results.
- Pat potato slices dry after slicing to prevent watery sauce.
- Do not stir during cooking—layers need to stay intact.
Step-by-Step Instructions (Creamy, Cheesy, Foolproof)
1. Prep Slow Cooker
- Lightly grease the inside of your slow cooker with butter or nonstick spray.
2. Layer Ingredients
