01 - Preheat oven to 375°F. Line a baking sheet with parchment paper.
02 - Roll out the puff pastry on a lightly floured surface to smooth any creases from folding.
03 - Brush the entire surface of the pastry with melted butter using a pastry brush.
04 - Combine granulated sugar and cinnamon in a small bowl. Sprinkle the mixture evenly over the buttered pastry surface.
05 - Cut the pastry into 12 even strips, approximately 3/4 inch wide, using a sharp knife or pizza cutter.
06 - Hold each strip at both ends and twist in opposite directions to create a spiral effect. Form a small loop at the bottom to resemble bunny ears.
07 - Transfer the shaped twists to the prepared baking sheet, spacing them evenly. Gently press the ends onto the parchment to help maintain their shape during baking.
08 - Bake for 12 to 15 minutes until the pastry is golden brown, puffed, and cooked through.
09 - Allow the twists to cool on the baking sheet for 5 minutes, then transfer to a wire rack.
10 - Whisk together icing sugar and milk until smooth. Drizzle the glaze over the cooled twists and immediately add sprinkles if using, before the glaze sets.