Ingredients for 12 tartlets: 1 sheet frozen puff pastry, partially thawed (you should get 12 tartlets if you use a 2-inch cutter like I did) 1 beaten egg 1/3 cup lemon curd, vanilla custard, chocolate mousse, whipped cream, or other appropriate filling 12 fresh blackberries powdered sugar, as needed *Bake puff pastry at 400 degrees F. for 13-15 minutes, allow to fully cool before filling.