Polenta Crusted Shrimp with Mustard and Herb Mayonnaise

Name: Polenta Crusted Shrimp with Mustard and Herb Mayonnaise
Ingredients: 1 1/2 cups mayonnaise; 1/4 cup sour cream; 2 tablespoons Dijon mustard; 1/4 cup chopped fresh tarragon leaves; 1/4 cup chopped fresh chives; 1/2 cup all-purpose flour; 1 teaspoon sea salt; 1/4 teaspoon freshly ground black pepper; 2 eggs, beaten; 1 1/2 cups polenta; 2 teaspoons paprika; 1 1/2 teaspoons dried thyme; 1 pound large shrimp, peeled, deveined, tail-on; 3 to 4 tablespoons olive oil; Kosher salt, for sprinkling