Ramp and Potato Gratin with Gruyère
A springtime celebration of tender potatoes layered with fresh ramps and a creamy cheese sauce, baked to golden perfection. This american-inspired vegetarian ready in about 90 minutes pairs bunch, trimmed and thinly sliced ramps, heavy cream, whole milk for a weeknight-friendly dinner that comes together with one pan and minimal cleanup. Each serving lands at about 350 calories and feeds 8, 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, peeled and thinly sliced russet potatoes
- 1 bunch, trimmed and thinly sliced ramps
- 1 cup heavy cream
- 1/2 cup whole milk
- 1/4 cup, grated Gruyère cheese
- 1/4 cup, grated Parmesan cheese
- 2 tbsp unsalted butter
- 2 cloves, minced garlic
- 1/2 tsp salt
- 1/4 tsp black pepper
- 1/4 tsp dried thyme
Instructions
- Step 1: Preheat oven to 375°F (190°C) and butter a 9x13-inch baking dish.
- Step 2: Melt 2 tbsp butter in a medium saucepan over medium heat, add minced garlic, and sauté for 1 minute until fragrant.
- Step 3: Whisk in heavy cream, whole milk, salt, black pepper, and dried thyme, then simmer for 5 minutes until slightly thickened.
- Step 4: Stir in 1/4 cup grated Gruyère and 1/4 cup grated Parmesan until fully melted and smooth, then remove from heat.
- Step 5: Layer half of the sliced potatoes in the baking dish, sprinkle with half of the sliced ramps, then pour half of the cheese sauce over the top.
- Step 6: Repeat layers with remaining potatoes, ramps, and cheese sauce, ensuring the top is covered.
- Step 7: Cover with aluminum foil and bake for 45 minutes, then remove foil and bake uncovered for 15 minutes until golden and bubbly.
Equipment for this recipe
Top-rated tools to make this recipe successfully.
Frequently asked questions
How long does Ramp and Potato Gratin with Gruyère take to make?
Total time is about 90 minutes (30 min prep + 60 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 Ramp and Potato Gratin 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 heavy cream from drying out.
Can I substitute ingredients in Ramp and Potato Gratin 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 Ramp and Potato Gratin with Gruyère for a different number of people?
The recipe is written for 8 servings. Multiply each ingredient by (your serving target / 8). 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 Ramp and Potato Gratin with Gruyère?
American 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
- ★★★★★
The ramp and gruyere combination was perfect. My whole family asked for seconds.
- ★★★★★
Best gratin I've ever made! The potatoes were golden and the ramp flavor came through perfectly.
- ★★★★☆
A bit bland for my taste, but the texture was great. I'll add more herbs next time.
