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 pastry surface with melted butter.
04 - Combine granulated sugar and ground cinnamon; sprinkle evenly across the buttered pastry.
05 - Cut the pastry into 12 even strips, approximately 3/4 inch wide.
06 - Twist both ends of each strip in opposite directions, then form a loop at the bottom to create bunny ear shapes.
07 - Place the formed twists on the prepared baking tray, gently pressing the ends to secure their shape.
08 - Bake for 12 to 15 minutes, or until the pastry turns golden brown and puffs up.
09 - Transfer the twists to a cooling rack and let cool slightly.
10 - Whisk together icing sugar and milk to create a smooth glaze; drizzle over the cooled twists and add sprinkles if desired.