This easy, gluten-free take on Scalloped Potatoes are perfect for entertaining, simply flavored with fresh thyme and plenty of cheddar cheese.
Prep: 35 minutesmins
Cook: 1 hourhr10 minutesmins
Resting Time: 20 minutesmins
Total: 2 hourshrs5 minutesmins
Recipe makes approximately 8
Equipment Needed
9x13-inch baking dish
Ingredients Needed
3poundsyukon gold potatoes(thinly sliced)
½onion(thinly sliced)
⅓cupgluten free all-purpose flour(divided)
¼cupbutter(diced and divided)
1teaspoonsalt
¼teaspoonground black pepper
1teaspoongarlic powder
2teaspoonsfresh thyme leaves(chopped, divided)
2cupswhole milk
1cupvegetable stock( or chicken stock)
2cupsgrated cheddar
Get Recipe Ingredients
Instructions
Preheat oven to 375 degrees F (190 degrees C). Grease a 9x13-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.
Recipe 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.