Genuine Butter-Scalloped Potatoes with Gruyère

By AislePrompt Test Kitchen · Reviewed by AislePrompt Editorial · ·

Creamy, rich potatoes layered with real Gruyère cheese and slow-baked in a pure butter sauce, honoring the distinction between genuine and artificial dairy. This french-inspired one pot ready in about 95 minutes pairs russet potatoes, unsalted butter, heavy cream for a weeknight-friendly dinner that comes together with one pan and minimal cleanup. Each serving lands at about 420 calories and feeds 6, so it slots cleanly into a weekly meal plan and pairs well with a quick salad or grain on the side. Tap "Plan a meal with the AI" below to drop this recipe into your week and send the ingredients straight to Instacart. Nutrition values are approximate, calculated from USDA FoodData Central (fdc.nal.usda.gov) — verify against ingredient labels for any health-driven dietary plan.

★ 4.2 (9 ratings) Prep: 30 min Cook: 65 min Serves 6 French cuisine 420 cal/serving
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Ingredients

Instructions

  1. Step 1: Preheat oven to 375°F. Thinly slice 2 lbs russet potatoes (1/8-inch thick) using a mandoline. Melt 1/2 cup unsalted butter in a saucepan over medium heat, then add 1 minced shallot and 1 tbsp fresh thyme, sautéing for 3 minutes until softened and fragrant.
  2. Step 2: Stir in 1 cup heavy cream, 1.5 tsp salt, and 1 tsp black pepper. Simmer gently for 5 minutes until slightly thickened, then remove from heat.
  3. Step 3: Spread 1/3 of the potato slices in a greased 9x13-inch baking dish. Pour 1/3 of the cream sauce over potatoes, then sprinkle 1/3 of 1 cup Gruyère cheese. Repeat layers twice, ending with cheese on top.
  4. Step 4: Cover with foil and bake for 45 minutes. Remove foil and bake uncovered for 15-20 minutes until the top is golden and bubbly and potatoes are tender when pierced with a fork.
  5. Step 5: Let rest for 10 minutes before serving to allow the sauce to set. Garnish with extra thyme.

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Frequently asked questions

How long does Genuine Butter-Scalloped Potatoes with Gruyère take to make?

Total time is about 95 minutes (30 min prep + 65 min cook). Most home cooks find this fits comfortably into a weeknight; double the batch on Sunday for two dinners.

How do I store leftover Genuine Butter-Scalloped Potatoes with Gruyère?

Cool to room temperature within 2 hours, then store in an airtight container in the fridge for up to 4 days. Reheat covered in a 350°F oven for 10-12 minutes, or microwave at 70% power in 60-second bursts to keep russet potatoes from drying out.

Can I substitute ingredients in Genuine Butter-Scalloped Potatoes with Gruyère?

Yes — most ingredients in this recipe have flexible swaps. For oil, use any neutral high-smoke-point oil (avocado, grapeseed, refined coconut). For aromatics, dried herbs at ⅓ the volume of fresh work in a pinch. The full ingredient list is shoppable on Instacart so you can see substitutes in real time.

How do I scale Genuine Butter-Scalloped Potatoes with Gruyère for a different number of people?

The recipe is written for 6 servings. Multiply each ingredient by (your serving target / 6). Cook time stays roughly the same up to 2x; for 3-4x batches, switch from a skillet to a sheet pan or stockpot so the food isn't crowded — overcrowding steams instead of browns.

What goes well with Genuine Butter-Scalloped Potatoes with Gruyère?

French one pot like this pair well with a simple grain (rice, couscous, or crusty bread), a quick salad with acid (lemon vinaigrette, pickled onions), and a pan sauce or yogurt-based dip. Tap "Plan a meal with the AI" to get specific side suggestions.

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