Ingredients For the Shrimp: 24 tablespoons (3 sticks; 340 g) cold unsalted butter, cut into 1/2-inch cubes, divided 1 1/2 pounds jumbo (16/20) shrimp (preferably Gulf), head-on and unpeeled (see notes) 1/2 cup Worcestershire sauce 2 tablespoons fresh lemon juice 1/4 cup dry white wine 2 teaspoons ground black pepper 2 teaspoons fresh cracked black pepper 2 teaspoons Cajun seasoning mix, such as Tony Chachere's or Slap Ya Mama (see notes) Pinch smoked paprika 1 teaspoon minced