Shrimp Burgers with Avocado Tartar Sauce

Deselect All

Avocado Tartar Sauce:

1 large shallot, halved

2 cloves garlic

1/2 large ripe avocado

Zest and juice of 1 lime (1 teaspoon zest; 4 1/2 teaspoons juice)

1 tablespoon capers

1 tablespoon minced fresh parsley

1/2 cup mayonnaise

1 teaspoon Dijon mustard

1 teaspoon seasoning salt with chiles and lime, such as Tajin

Kosher salt and freshly ground black pepper

Burgers:

2 3/4 pounds medium shrimp, peeled and deveined

1/2 cup fresh cilantro leaves

2 large eggs

1 tablespoon mayonnaise

1 tablespoon Dijon mustard

1 tablespoon (or more) seafood seasoning

1 1/2 cups crushed round buttery crackers, such as Ritz (about 36 crackers)

Canola oil, for cooking

8 onion rolls, split

8 butter lettuce leaves

1 Vidalia onion, thinly sliced

2 ripe tomatoes, sliced