- 1/2 cup finely chopped red onion
- 3/4 teaspoon salt
- 1 large tomato, seeded and chopped
- 4 teaspoons red-wine vinegar
- 1 teaspoon sugar
- 2 tablespoons chopped fresh dill
- 24 sea scallops, tough muscle removed from side of each if necessary
- Vegetable oil for brushing grill
- Prepare grill for cooking.
- Make relish: Soak onion in 1 cup water with 1/2 teaspoon salt 15 minutes, then drain. Stir together onion, tomato, vinegar, sugar, and remaining 1/4 teaspoon salt and let stand 20 minutes. Drain relish in a sieve, discarding liquid, then stir in dill.
- Cook scallops while relish is standing: Pat scallops dry and season with salt and pepper. Grill scallops in 2 batches on lightly oiled grill rack, turning once, until just cooked through, 4 to 5 minutes.
- Serve scallops with relish.