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Cheesy scalloped potatoes with fresh thyme, served warm in a cast iron skillet, showing a crispy, golden-brown top.

Easy Cheesy Scalloped Potatoes (No Flour)

A rich and creamy side dish with layers of tender potatoes, garlic, thyme, and a decadent blend of heavy cream and Gruyère cheese. Perfectly baked to golden perfection and ideal for cozy family meals or special occasions. No flour needed, just pure potato goodness!
Prep Time 20 minutes
Cook Time 1 hour
Resting Time 20 minutes
Total Time 1 hour 40 minutes
Serving Size 6

Ingredients

  • 3 cups heavy cream
  • 1 tablespoon minced garlic
  • 1 tablespoon minced onion
  • 1 tablespoon salt divided
  • 1 tablespoon dried thyme
  • 1 tablespoon ground black pepper
  • 3 pounds Yukon Gold potatoes
  • ½ cup Gruyère cheese grated

Instructions

  • Set your oven to 350°F. Peel the Yukon Gold potatoes (or leave the skin on if organic and well-scrubbed), then use a mandoline to slice them into thin, ⅛-inch pieces. If you don’t have a mandoline, slice as thinly as possible with a sharp knife.
  • In a skillet, arrange an even layer of potato slices, covering the bottom of the skillet. Pour 1 cup of the cream over the layer, then sprinkle with black pepper, minced onion, minced garlic, salt, and thyme.
  • Repeat the layering process two to three more times, depending on the depth of your skillet, until all the potatoes are used. Pour cream over each layer and season it with black pepper, garlic, onion, salt, and thyme.
  • Place the cast iron skillet in the oven and bake for 55-60 minutes or until the potatoes are fork tender. The top layer should start to turn golden brown.
  • Remove the skillet from the oven and set it to broil. Sprinkle the grated Gruyère cheese evenly over the potatoes. Return the skillet to the oven and broil for 3 to 5 minutes, or until the cheese is melted and golden brown. Watch carefully to avoid burning.
  • Let the scalloped potatoes rest before serving. This resting time allows the cream to set, giving a perfectly creamy consistency.

Notes

Recipe Tips for Making Perfect Cheesy Scalloped Potatoes

  • Thin, even slices are key to uniform cooking. A mandoline is ideal, but a sharp knife also works.
  • Gruyère cheese adds a nutty flavor, but feel free to substitute with sharp cheddar if you prefer.
  • Allow time for resting after baking. It makes serving easier and gives the dish a thicker, creamier texture.