01 - Combine mayonnaise, Dijon mustard, relish, hot sauce, lemon juice, minced garlic, smoked paprika, salt, and pepper in a small bowl. Mix thoroughly and refrigerate until serving.
02 - In a shallow bowl, whisk together flour, cornmeal, Cajun seasoning, garlic powder, paprika, salt, and black pepper until well blended.
03 - In a separate bowl, whisk eggs and milk until fully combined.
04 - Dip each shrimp into the egg mixture, allowing excess to drip off, then press into the flour-cornmeal mixture to coat evenly on all sides.
05 - Pour approximately 2 inches of vegetable oil into a large skillet or Dutch oven and heat to 350°F.
06 - Cook shrimp in batches for 2-3 minutes per side until golden brown and crispy. Remove with a slotted spoon and drain on paper towels.
07 - Lightly toast the cut sides of the rolls if desired, then spread a generous layer of remoulade sauce on both halves.
08 - Layer shredded lettuce, sliced tomatoes, pickle slices, and fried shrimp on the bottom roll. Top with additional sauce if preferred and crown with the top roll.
09 - Serve while shrimp remain hot and crispy for optimal texture and flavor.