How to Make It
In a bowl, whisk the pepper jelly with the mustard and vinegar until smooth.
In a large saucepan, heat 1 1/2 inches of vegetable oil to 350°. In a bowl, mix the flour with the scallions, coconut, baking powder, sugar, salt and pepper. Whisk in the beer and egg to form a thick batter.
Working in batches, dip the shrimp in the batter (don't shake off the excess) and fry over moderate heat, turning once, until golden and crisp, about 3 minutes. Using a slotted spoon, transfer the shrimp to paper towels to drain. Serve with the pepper jelly sauce.