01 - Preheat oven to 375°F. Line a baking tray with parchment paper.
02 - Roll out the puff pastry on a lightly floured surface to smooth any creases.
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.
05 - Cut the pastry into 12 even strips, approximately 3/4 inch wide, using a knife or pizza cutter.
06 - Take each strip and twist both ends in opposite directions. Form a loop at the bottom to create bunny ear shapes.
07 - Place the shaped twists on the prepared baking tray, gently pressing down the ends to help them hold their shape during baking.
08 - Bake for 12 to 15 minutes, or until golden brown and puffed.
09 - Transfer twists slightly to a wire cooling rack. Allow to cool for a few minutes before glazing.
10 - Whisk together icing sugar and milk to create a smooth glaze. Drizzle over the cooled twists and add sprinkles if desired.