Old Bay Chicken with Tartar Sauce

Name: Old Bay Chicken with Tartar Sauce
Ingredients: 2 tablespoons extra-virgin olive oil, plus more for the grill; 1 tablespoon grainy mustard; Grated zest of 2 lemons; 2 teaspoons Old Bay Seasoning; 2 teaspoons sweet paprika; 1/4 teaspoon cayenne pepper; 1 1/4 pounds chicken cutlets (4 to 6); Kosher salt and freshly ground black pepper; 1/2 cup mayonnaise; 1 tablespoon fresh lemon juice; 2 tablespoons chopped fresh parsley; 2 tablespoons finely chopped cornichons; 2 teaspoons grainy mustard; 2 teaspoons chopped fresh dill; 2 teaspoons chopped capers