Step 1: Crafting the Flaky Layers

1. Preheat the oven to 400°F (200°C).
2. Roll out the puff pastry on a lightly floured surface until it’s about 1/8 inch thick.
3. Cut the pastry into small, bite-sized rectangles (approximately 1 inch by 2 inches).
4. Place them on a parchment-lined baking sheet and prick all over with a fork to prevent excessive puffing.
5. Lightly sprinkle granulated sugar on top for extra crispiness.
6. Bake for 10-12 minutes or until golden brown and crisp. Cool on a wire rack.

Step 2: Whipping Up the Vanilla Cream

1. In a mixing bowl, combine the chilled heavy cream, powdered sugar, and vanilla extract.
2. Beat with an electric mixer or whisk until soft peaks form. Avoid overwhipping.

Step 3: Assembling the Masterpiece

1. Once the pastry rectangles are cool, start layering.
2. Place one piece on a clean surface and pipe or spoon small dollops of vanilla whipped cream on top.
3. Add a second pastry piece and repeat with whipped cream.
4. Finish with a third pastry layer, a final dollop of whipped cream, and 2-3 fresh raspberries.
5. Garnish with a mint leaf for a touch of elegance.
6. Repeat the process for all cookies.