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Author Notes: These scalloped potatoes were a hit on Easter Sunday with friends and family, so why not Thanksgiving? These are not your average scalloped potatoes as there are delicious caramelized onions layered in between the sliced potatoes and cheese. A lighter version can be made with milk and a béchamel sauce instead of the whipping cream, see directions at the end of the recipe. You can also double the recipe if you have lots of guests, making the potatoes in two 8 x 12-inch casseroles.
Food52 Review: WHO: Katheryn’s Kitchen is a Food52-er from Canada who is new to the finalists' circle.
WHAT: A gratin you’ll want to make for every holiday dinner, and beyond.
HOW: Simmer, slice, then layer everything up, lasagna-style, and bake.
WHY WE LOVE IT: With an ingredients list so short, you won't be prepared for the elegant, distinguished, utterly incredible gratin that comes out of the oven. And after you take it out, we'd guard it if we were you -- our editors went at this with spoons straight out of the dish. —The Editors
Serves 6 to 8
- 2 cups whipping cream
- 4 crushed garlic cloves
- 3 peppercorns
- 3/4 teaspoon sea salt
- 1 tablespoon oil
- 1 large Spanish or yellow onion, thinly sliced
- 3 large Yukon Gold potatoes (2 to 3 pounds), peeled
- 1 cup shredded Gruyere cheese
- 2 sprigs fresh thyme
- In saucepan, bring cream, garlic, peppercorns, thyme, and salt to just under boil; reduce heat to low, cover and simmer for 15 minutes. Remove from heat; set aside.
- Heat your oven to 300° F.
- Meanwhile, in skillet, heat oil over medium-low heat and cook onion, stirring often, until light brown, about 45 minutes. Slice potatoes as thinly as possible (using a mandoline if available).
- Layer 1/4 of the potatoes in greased about 8 x 12-inch glass baking or casserole dish; top with 1/3 of the onion and 1/4 of the cheese. Repeat twice. Top with remaining potatoes. Strain cream mixture over potatoes, shaking casserole to distribute evenly. Sprinkle with remaining cheese.
- Bake in 300° F oven on a baking sheet (to catch drips) until tender and a knife inserted into the dish pierces potatoes easily, 1 1/2 to 2 hours. (Make-ahead: Let cool, then cover and refrigerate for up to 2 days. Reheat, tented with tin foil, in 375° F oven for 30 minutes.)
- Tip: For a lighter version, steep garlic, peppercorns, thyme, and salt in 2 cups of (500 mL) milk. Then make béchamel sauce: In saucepan, melt 2 tablespoons butter over medium-low heat. Add 2 tablespoons all-purpose flour. Cook, stirring, for 1 minute. Whisk in strained milk mixture, and simmer everything for 5 minutes until slightly thickened. Pour over potatoes.
- Your Best Recipe with Potatoes Contest Finalist!
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