Grilled Chicken BLT with Green Goddess Sauce

Name: Grilled Chicken BLT with Green Goddess Sauce
Ingredients: 1/3 cup mayonnaise; 1/4 cup finely chopped fresh chives; 1/4 cup finely chopped fresh parsley; 2 tablespoons chopped fresh tarragon; 1 tablespoon capers, drained; 1 anchovy fillet; 1 clove garlic, minced; 5 teaspoons fresh lemon juice; Kosher salt and freshly ground pepper; 1/3 cup sour cream; 4 thin chicken cutlets (4 to 5 ounces each); 2 tablespoons extra-virgin olive oil; 4 hamburger buns, split; Sliced tomatoes, cooked thick-cut bacon and Boston lettuce, for topping