Gather ingredients, preheat oven to 400°F (200°C), and line a baking sheet with parchment paper.

Roll out the puff pastry to about 1/8-inch thick on a floured surface.

Spread the strawberry mixture evenly over the rolled-out pastry, leaving a 1-inch border.

Fold the pastry inward from both sides to meet in the center, then fold in half and slice into 1-inch pieces.

Arrange cut palmiers on the baking sheet and bake for 15-20 minutes until golden brown.

Allow to cool for a few minutes and optionally dust with powdered sugar before serving.