Ingredients

1 sheet frozen puff pastry (8 1/2 ounces), thawed, cut into 5 equal strips 

3 tablespoons raspberry jam 

4 tablespoons sugar 

Preparation

Preheat oven to 400 degrees. Unfold puff pastry onto a cutting board; cut crosswise into 5 equal strips.

Spread 4 strips with raspberry jam, and sprinkle with 2 tablespoons sugar. Stack coated strips; top with remaining strip. Freeze until firm, 10 to 15 minutes.

Line 2 baking sheets with parchment paper. With a serrated knife slice stack crosswise 1/4-inch-thick placing slices on baking sheets as you work, 4 inches apart. Sprinkle with remaining 2 tablespoons sugar.

Bake until puffed and golden, 15 to 20 minutes. Cool slightly on baking sheet, then transfer to a wire rack to cool completely.