Creamy Rösti with Smoked Gruyère and Caramelized Onions

By AislePrompt Editorial · Published 2026-07-10 · Updated 2026-07-10

Golden, pan-fried Swiss rösti topped with melted smoked Gruyère cheese and sweet caramelized onions, perfect as a hearty side or light main. This Swiss-inspired vegetarian recipe, ready in about 45 minutes, pairs large potatoes, salt, black pepper for a weeknight-friendly dinner that comes together with one pan and minimal cleanup. Each serving lands at about 400 calories and feeds 3, 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 (about 1 lb), peeled and grated large potatoes
• 1 tsp salt
• 1/2 tsp black pepper
• 3 tbsp butter
• 1 large, thinly sliced yellow onion
• 1 cup shredded smoked Gruyère cheese
• 1 tbsp olive oil

The pan we’d use for this → Best Nonstick Cookware for 2026: Top 5 Skillet Picks + Buying Guide

Instructions

1. Step 1: Place 2 peeled and grated large potatoes (about 1 lb) in a clean kitchen towel and squeeze out excess moisture. Transfer to a bowl and season with 1 tsp salt and 1/2 tsp black pepper.
2. Step 2: Heat 2 tbsp butter and 1 tbsp olive oil in a 10-inch nonstick skillet over medium heat until shimmering. Add the grated potatoes, pressing down firmly to form a 1/2-inch thick cake. Cook for 10 minutes without stirring until the edges are golden brown and crisp.
3. Step 3: Carefully flip the rösti using a large plate to invert, then slide it back into the skillet. Cook for an additional 8 minutes until the other side is golden.
4. Step 4: While the rösti cooks, melt 1 tbsp butter in a small pan over low heat. Add 1 thinly sliced large yellow onion and cook slowly for 15 minutes, stirring occasionally, until the onions are deeply golden and caramelized.
5. Step 5: Sprinkle 1 cup shredded smoked Gruyère evenly over the top of the rösti, cover the skillet, and cook for 2-3 minutes until the cheese melts.
6. Step 6: Slide the rösti onto a serving plate and top with the caramelized onions for a rich, comforting dish.