01 - Preheat oven to 400°F. Line two baking sheets with parchment paper.
02 - Combine granulated sugar and ground cinnamon in a small bowl. Mix thoroughly until evenly blended.
03 - Roll out thawed puff pastry sheets on lightly floured surface. Brush each sheet generously with melted butter, then sprinkle cinnamon sugar mixture evenly across surface.
04 - Using pizza cutter or sharp knife, slice each pastry sheet into 4 long strips approximately 1 1/2 inches wide.
05 - Twist each strip several times. Form into bunny silhouette by creating oval body and looping end for head, pinching dough to secure shape. Shape small pieces into ears if desired.
06 - Place shaped bunnies on prepared baking sheets, leaving adequate space between each for expansion during baking.
07 - Whisk large egg with milk in small bowl until well combined. Brush each bunny twist lightly with egg wash mixture.
08 - Press mini chocolate chips or raisins into dough to create bunny eyes if using decoration.
09 - Bake for 13–15 minutes until pastry is puffed, golden brown, and fully cooked through.
10 - Remove from oven and allow to cool slightly on baking sheets. Dust with powdered sugar before serving warm.