Acadian Potato and Carrot Gratin

By · Reviewed by AislePrompt Editorial · ·

A creamy, layered gratin featuring locally grown potatoes and carrots baked with Gruyère and Parmesan for a hearty side dish. This canadian-inspired vegetarian (vegetarian) ready in about 70 minutes pairs whole milk, heavy cream, grated Gruyère cheese 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.

Prep: 25 min Cook: 45 min Serves 6 Canadian cuisine 320 cal/serving
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Ingredients

Instructions

  1. Step 1: Preheat oven to 375°F (190°C). Butter a 9x13-inch baking dish.
  2. Step 2: In a large bowl, combine 2 thinly sliced potatoes, 2 thinly sliced carrots, and 1 tsp dried thyme. Season with salt and freshly ground black pepper to taste.
  3. Step 3: In a small saucepan, melt 2 tbsp unsalted butter over medium heat. Add 1 cup whole milk and 1/2 cup heavy cream, cooking for 5 minutes until warm but not boiling.
  4. Step 4: Pour the warm milk mixture over the potatoes and carrots in the bowl, stirring to coat. Transfer to the prepared baking dish.
  5. Step 5: Sprinkle 1/4 cup grated Gruyère cheese and 1/4 cup grated Parmesan cheese evenly over the top.
  6. Step 6: Bake for 45 minutes, or until the top is golden and the potatoes are tender when pierced with a fork.

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Frequently asked questions

How long does Acadian Potato and Carrot Gratin take to make?

Total time is about 70 minutes (25 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 Acadian Potato and Carrot 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 whole milk from drying out.

Can I substitute ingredients in Acadian Potato and Carrot 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 Acadian Potato and Carrot 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.

Is Acadian Potato and Carrot Gratin vegetarian?

Yes — this recipe is tagged vegetarian based on its ingredient list. Always cross-check labels for packaged ingredients (sauces, broths, condiments) since formulations vary by brand.

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