Gluten Free Scalloped Potatoes
Posted: 11/13/25
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This easy, creamy, cheesy recipe for Gluten Free Scalloped Potatoes deserves a spot on your holiday table! Sliced potatoes are layered in a simple creamy sauce before being seasoned with fresh thyme and plenty of bubbly cheddar cheese. You can even prep it ahead!
Why You’ll Love This Recipe
- This recipe has everything you want from a baked potato side dish: tender potatoes, a gooey, cheesy top, and a creamy sauce. It’s the perfect gluten-free and vegetarian gratin.
- These easy, cheesy scalloped potatoes are the perfect holiday side dish, but can also become a vegetarian main any time of the week by adding a simple side salad or some cooked greens!
Chef’s Tips
- A mandolin will help you get nice even slices of potato, but if you don’t have one or you’re worried about cutting yourself a large, sharp knife will still make potato slices good enough for this dish!
- Don’t be tempted to skip the resting time for this potato gratin, as the potatoes need time to absorb the liquid from the sauce out of the oven. If you try to slice it without resting if your pieces will just be a sloppy mess!
- These gluten-free scalloped potatoes start with making a gluten-free roux. If you’ve not done this before, this guide to making gluten-free roux explains the process in a bit more detail.
- If cheddar is a bit too strong in flavor for whatever else you’re planning on serving this with, gruyere is a milder, yet still delicious swap.
- You can assemble this scalloped potato dish up to a day ahead.
More Easy Gluten-free Side Dishes
- Shredded Brussels Sprout Salad
- Skinny Carrot Fries
- How To Cook Sweet Potato In The Air Fryer
- White Bean Salad with Easy Vinaigrette
- Chick-fil-A Coleslaw Recipe
- Slow Cooker Swamp Potatoes
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Gluten Free Scalloped Potato Gratin
This easy, gluten-free take on Scalloped Potatoes are perfect for entertaining, simply flavored with fresh thyme and plenty of cheddar cheese.
Ingredients
- 3 pounds yukon gold potatoes thinly sliced
- ½ onion thinly sliced
- ⅓ cup gluten free all-purpose flour divided
- ¼ cup butter diced and divided
- 1 teaspoon salt
- ¼ teaspoon ground black pepper
- 1 teaspoon garlic powder
- 2 teaspoons fresh thyme leaves chopped, divided
- 2 cups whole milk
- 1 cup vegetable stock or chicken stock
- 2 cups grated cheddar
Equipment
- 9×13-inch baking dish
Instructions
- Preheat oven to 375 degrees F (190 degrees C). Grease a 9×13-inch baking dish.
- Melt butter in a medium saucepan over medium heat. Sprinkle over gluten-free flour and whisk to combine into a paste. Cook for 1 minute or until lightly golden.
- Slowly pour in stock, whisking constantly until well combined. Add in milk, salt, pepper, garlic powder, 1 teaspoon thyme. Cook whisking often, for 2 to 3 minutes, or until the sauce lightly coats the back of a spoon. Remove from the heat.
- Layer half of the potatoes at the bottom of the prepared baking dish. Top with half the onion, then half the sauce and 1 cup of the cheese. Repeat the layers with the remaining potatoes, onion, sauce, and 1 cup cheese.
- Cover and bake for 30 minutes, then uncover and bake for 35 to 40 minutes, or until the potatoes are tender and the cheese on top is browned. Let stand at room temperature for 20 minutes before serving. Sprinkle with remaining thyme.
Notes
A mandolin will help you get nice even slices of potato, but if you don’t have one or you’re worried about cutting yourself a large, sharp knife will still make potato slices good enough for this dish!
Don’t be tempted to skip the resting time for this potato gratin, as the potatoes need time to absorb the liquid from the sauce out of the oven. If you try to slice it without resting if your pieces will just be a sloppy mess!
These gluten-free scalloped potatoes start with making a gluten-free roux. If you’ve not done this before, this guide to making gluten-free roux explains the process in a bit more detail.
If cheddar is a bit too strong in flavor for whatever else you’re planning on serving this with, gruyere is a milder, yet still delicious swap.
You can assemble this scalloped potato dish up to a day ahead.
Nutrition Information
Calories: 360kcal | Protein: 12g | Fat: 17g | Saturated Fat: 10g | Trans Fat: 0.2g | Total Carbs: 35g | Fiber: 4g | Sugar: 5g | Net Carbs: 31g | Vitamin C: 35mg | Cholesterol: 51mg | Sodium: 672mg | Potassium: 850mg | Calcium: 301mg | Iron: 2mg
Number of total servings shown is approximate. Actual number of servings will depend on your preferred portion sizes.
Nutritional values shown are general guidelines and reflect information for 1 serving using the ingredients listed, not including any optional ingredients. Actual macros may vary slightly depending on specific brands and types of ingredients used.
To determine the weight of one serving, prepare the recipe as instructed. Weigh the finished recipe, then divide the weight of the finished recipe (not including the weight of the container the food is in) by the desired number of servings. Result will be the weight of one serving.
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