Preheat the oven to 375°F. Use a bunny cookie cutter to cut out as many bunnies as you can in each sheet. Place on a baking sheet prepared with parchment paper.
Make an egg wash by whisking one egg in a small bowl. Use a pastry brush to add egg wash to each puff pastry dough slice.
Bake these for 8-10 minutes until the tops are golden brown and the pastry bunnies have puffed up.
Remove from the oven and let cool completely.
While those are cooling make the strawberry sauce.
In a saucepan over medium heat, add the sliced strawberries, white sugar, water and cornstarch all at once. Stir together and let the mixture come to low boil. Remove from the heat when the strawberry sauce thickens.
In a medium sized bowl, add the heavy whipping cream, powdered sugar, and vanilla.
Blend with a hand mixer until a thick cream is formed with peaks. Transfer to a piping bag with or without a fitted tip.
Once the bunny pastries are cooled, slice each in half to create a sandwich.
Spread a small amount of just the strawberry sauce along the bottom half of the puff pastry.
Then fill by piping a thick layer of the whipped cream inside. Top with some strawberries and strawberry sauce.
Put the other half of the bunny puff pastry back on top and sift with powdered sugar.
Serve and enjoy!
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Notes
If the dough gets too soft while working, place it back in the refrigerator for a few minutes to firm up.
Chill the puff pastry dough before baking to help it puff up with crisp flaky layers.
These are best eaten the day of or they will become soggy quick due to the strawberry sauce.
The whipping cream and strawberry sauce can be made and stored in the fridge, but I recommend that the puff pastry is cooked and served in the same day.