Shrimp and Cod Burgers

Preparation

1. Step 1

   Process half of the shrimp in a food processor until a paste forms. Add the cod, remaining shrimp, and the bread crumbs, capers, scallions, parsley, lemon juice, salt, and pepper. Pulse until just combined (do not overprocess).

   Step 2

   Using dampened hands, shape into 4 patties. Refrigerate, covered, until cold and firm, about 1 1/2 hours (or overnight).

   Step 3

   Preheat the grill to medium-high (if using a charcoal grill, coals are ready when you can hold your hand above grill for just 3 to 4 seconds). Brush the grill and the burgers with oil. Grill, flipping once, until cooked through, about 3 minutes per side. Toast the buns on the grill during the last minute of cooking, if desired. Serve the burgers on the buns; top with lettuce. Serve with tartar sauce, if desired, and the lemon wedges.

2. Tarragon Tartar Sauce

   Step 4

   Stir together the mayonnaise, relish, lemon juice, capers, tarragon, salt, and pepper in a medium bowl. The sauce can be refrigerated in an airtight container up to 1 week.