Layered Authentic Potato Gratin
A textured gratin inspired by the 'Authentic' shoe's layered comfort, featuring thinly sliced potatoes, cream, and a golden crust. This french-inspired vegetarian ready in about 75 minutes pairs russet potatoes, heavy cream, whole milk for a weeknight-friendly dinner that comes together with one pan and minimal cleanup. Each serving lands at about 320 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.
Ingredients
- 2 lbs russet potatoes
- 1.5 cups heavy cream
- 1/2 cup whole milk
- 1 cup, grated gruyere cheese
- 2 tsp, chopped fresh thyme
- 2 tbsp unsalted butter
- 1 tbsp all-purpose flour
- 2, minced garlic cloves
- 1 tsp salt
- 1/2 tsp black pepper
Instructions
- Step 1: Preheat oven to 375°F. Thinly slice potatoes (1/8-inch thick) using a mandoline slicer. Arrange in a single layer in a 9x13-inch baking dish, sprinkling 1/4 tsp salt between each layer.
- Step 2: In a saucepan, melt 1 tbsp butter over medium heat. Whisk in flour to form a roux, cooking for 1 minute. Slowly whisk in heavy cream and milk until smooth, then add minced garlic, thyme, remaining 3/4 tsp salt, and 1/2 tsp black pepper. Simmer for 5 minutes until slightly thickened.
- Step 3: Pour half the cream mixture over the potatoes. Sprinkle 1/2 cup grated gruyere evenly over the top. Repeat layers with remaining potatoes and cream mixture, finishing with remaining cheese.
- Step 4: Bake uncovered for 45 minutes until potatoes are tender when pierced with a fork and the top is golden brown. Let rest for 15 minutes before serving to set the layers.
Equipment for this recipe
Top-rated tools to make this recipe successfully.
Frequently asked questions
How long does Layered Authentic Potato Gratin take to make?
Total time is about 75 minutes (30 min prep + 45 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 Layered Authentic Potato Gratin?
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 Layered Authentic Potato Gratin?
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 Layered Authentic Potato Gratin 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 Layered Authentic Potato Gratin?
French vegetarian 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.
What others are saying
- ★★★★★
Used frozen vegetables instead of fresh and honestly couldn't tell the difference.
- ★★★★★
Made this for my family and everyone asked for the recipe.
- ★★★★★
The aroma while cooking this was absolutely heavenly.
