Preheat oven to 400°F. Line a baking sheet with parchment paper and set aside.

Place the shrimp in a food processor and pulse a few times until chopped through and it resembles ground meat. Transfer to a large bowl. Add the bread crumbs, cilantro, scallions, shallot, garlic, ginger, egg white, sesame oil, hoisin, cornstarch, soy sauce, and garlic chili sauce. Mix until evenly combined.

Unfold the puff pastry sheets and roll out slightly with a rolling pin to remove the creases. Cut each sheet in half, lengthwise. Divide the shrimp mixture evenly between all four pieces of puff pastry and spread out down the center in a log shape. Brush the edge with egg wash and then fold over the filling. Press down on the edges and seal with a fork. Cut each log into 4 slices so you end up with 16 pieces and arrange on baking sheet. Brush with egg wash and sprinkle with sesame seeds. Bake until deep golden brown, about 20 to 25 minutes. Remove from the oven and allow to cool slightly before serving. Enjoy!