Step 1

Preheat oven to 400 degrees F.

Step 2

Rub the bottom of a shallow baking dish with cold butter. Arrange salmon in dish. Season the fish with salt and pepper. Add broth and a few sprigs of dill to the pan. Roast the fish 12 to 15 minutes.

Step 3

Combine sugar, salt and vinegar in the bottom of a medium bowl. Add chopped onions, chopped cucumber and radishes. Sprinkle in 3 tablespoons chopped dill and toss the mixture to coat in vinegar, sugar and salt.

Step 4

Remove fish from the oven. Spoon pan juices over fish and carefully transfer to individual plates or platter. Top fish with relish and serve.