Caramelized Onion and Raclette Cheese Frites

By , Test Kitchen Director · Reviewed by AislePrompt Editorial · ·

Golden crispy fries topped with melting raclette cheese and sweet caramelized onions, creating a rich and savory snack or side dish. This french-inspired snacks ready in about 50 minutes turns medium (about 2 lbs) russet potatoes, sliced raclette cheese, large, thinly sliced yellow onion into a satisfying snack for between meals, packed lunches, or game-day spreads — minimal active time and easy to scale up for a crowd. Each serving lands at about 450 calories and feeds 4, so it fits into lunchboxes, road trips, or an afternoon-energy gap without derailing the day. 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: 15 min Cook: 35 min Serves 4 French cuisine 450 cal/serving
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Ingredients

Instructions

  1. Step 1: Preheat oven to 425°F (220°C). Peel and cut 4 medium russet potatoes into 1/2-inch thick fries.
  2. Step 2: Toss the potato fries with 3 tbsp olive oil, salt, and black pepper; spread in a single layer on a baking sheet.
  3. Step 3: Bake for 25-30 minutes, turning halfway, until fries are golden and crisp.
  4. Step 4: Meanwhile, melt 1 tbsp unsalted butter in a skillet over medium heat; add 1 large thinly sliced yellow onion and cook for 20 minutes, stirring frequently, until deeply caramelized and sweet.
  5. Step 5: When fries are done, transfer them to an oven-safe dish; evenly layer 6 oz sliced raclette cheese over the fries.
  6. Step 6: Spoon the caramelized onions on top, sprinkle 1 tsp chopped fresh thyme if using, and place under the broiler for 2-3 minutes until the raclette cheese melts and bubbles.
  7. Step 7: Serve immediately as a decadent side or snack.

Equipment for this recipe

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Frequently asked questions

How long does Caramelized Onion and Raclette Cheese Frites take to make?

Total time is about 50 minutes (15 min prep + 35 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 Caramelized Onion and Raclette Cheese Frites?

Store in an airtight container at room temperature for crisp items, or in the fridge for anything dairy- or produce-based, for up to 3–5 days. Re-crisp baked snacks in a 300°F oven for 5 minutes if they soften.

Can I substitute ingredients in Caramelized Onion and Raclette Cheese Frites?

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 Caramelized Onion and Raclette Cheese Frites for a different number of people?

The recipe is written for 4 servings. Multiply each ingredient by (your serving target / 4). 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 Caramelized Onion and Raclette Cheese Frites?

French snacks 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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