Janssons Frestelse (Swedish Creamy Caramelized Onion & Spiced Sprat/Caper Potato Gratin) – Authentic Sweden Recipe
Sweden’s iconic bubbling potato gratin with a uniquely savory, umami-rich onion cream base.
- Country of Origin
- 🇸🇪 Sweden (Northern Europe, Europe)
- Dietary Profile
- pescatarian
- Prep Time
- 20 min
- Cook Time
- 30 min
- Difficulty
- Medium
- Signature Staples
- Matchstick-cut waxy potatoes, Sweet caramelized yellow onions, Swedish spiced anchovies (or capers), Rich cream, Butter
Ingredients for Janssons Frestelse (Swedish Creamy Caramelized Onion & Spiced Sprat/Caper Potato Gratin) (4 Servings)
- 1.25 lbs (or 2.5 cups) matchstick-cut waxy potatoes, prepped into bite-sized pieces
- 1.5 cups sweet caramelized yellow onions, washed and trimmed
- 1 cup Swedish spiced anchovies (or capers)
- 1 medium onion and 3 cloves garlic, finely minced with rich cream
- 1.5 tbsp traditional Sweden seasoning (butter, white pepper, dill)
- 2.5 tbsp traditional cooking oil, sea salt, cracked black pepper, and fresh citrus or herbs
Step-by-Step Cooking Instructions
- Preheat oven to 390°F (200°C) and lightly oil an ovenproof skillet or baking dish.
- In a skillet over medium heat, sauté onion, garlic, rich cream, and butter, white pepper, dill for 3 minutes until fragrant.
- Combine matchstick-cut waxy potatoes and sweet caramelized yellow onions with the sautéed aromatics and layer evenly into the baking dish.
- Top with Swedish spiced anchovies (or capers) and bake uncovered for 25–30 minutes until bubbling and golden brown on top.
- Let rest 5 minutes before serving warm at the table.