01 - Preheat oven to 375°F. Line a baking sheet with parchment paper.
02 - Roll out puff pastry on lightly floured surface to smooth any creases from folding.
03 - Brush entire surface of pastry with melted butter using a pastry brush.
04 - Combine granulated sugar and cinnamon in small bowl. Sprinkle mixture evenly over buttered pastry.
05 - Cut pastry into 12 even strips, approximately 3/4 inch wide, using sharp knife or pizza cutter.
06 - Hold each strip at both ends and twist in opposite directions to create spiral effect. Form small loop at bottom to resemble bunny ear shape.
07 - Place formed twists on prepared baking sheet. Gently press ends down to secure shape during baking.
08 - Bake for 12 to 15 minutes until pastry is golden brown, puffed, and fully cooked through.
09 - Transfer twists to wire cooling rack. Allow to cool for 5 to 10 minutes until warm but not hot.
10 - Whisk icing sugar with milk until smooth drizzling consistency forms. Drizzle glaze over cooled twists. Add sprinkles immediately while glaze is wet.