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Baked Fish Gratin with Potatoes

A classic Scandinavian one-pan dinner: white fish fillets baked with creamy potatoes and a buttery breadcrumb topping. Ready in 35 minutes.

Total time
35 min
Servings
4
Calories
425
Protein
38g
Baked Fish Gratin with Potatoes
comfortwholesomescandinavianfishcreamycrispytenderweeknight

Ingredients

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Instructions

  1. Step 1

    Slice potatoes 1/8-inch thick (a mandoline is fastest). Place in a colander and rinse under cold water.

  2. Step 2

    Pat fish fillets dry. Season both sides generously with salt and black pepper.

  3. Step 3

    Preheat oven to 400°F.

  4. Step 4

    Butter a 9x13-inch baking dish. Layer half the potato slices on the bottom, slightly overlapping.

  5. Step 5

    Arrange fish fillets over potatoes. Top with remaining potatoes, overlapping slightly.

  6. Step 6

    Pour milk evenly over everything. Dot with 2 tbsp butter cut into small pieces.

  7. Step 7

    Bake uncovered for 20 minutes until potatoes are almost tender and milk is bubbling.

  8. Step 8

    Mix breadcrumbs with remaining 2 tbsp melted butter. Sprinkle over the top.

  9. Step 9

    Return to oven and bake 8–10 minutes until breadcrumbs are golden brown.

  10. Step 10

    Rest 3 minutes. Serve hot straight from the dish.

Tools you’ll need

  • 9x13-inch baking dish
  • mandoline slicer (or sharp knife)
  • colander
  • paper towels
  • oven
  • measuring cups and spoons

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