In a heavy and wide saucepan, stir together the water, butter and salt and let it boil while stiring it the whole time. Remove from heat and add the sifted flour with wooden spoon until no flour can be seen anymore and it turns into a white clump. Transfer into another bowl.

Now add the eggs one after another (!!) and stir very well with an electric mixture until the eggs are incorporated and mixture is clump again.

Preheat oven to 220°C and prepare baking sheets. Transfer the dough to a pastry bag. Now pipe dough in small piles (or any size you prefer.

Bake for 20-28 minutes (depends on your oven and the size of the Windbeutel!). Then remove from oven and tranfer them to a wire rack. Let them cool completely.

Prepare filling: Beat mascapone together with the vanilla extract and vanilla sugar until creamy. In another bowl beat heavy cream until its smooth. Now combine both creams. Cut the fruit into smaller chunks as you prefer.Slice the Windbeutel and fill with the filling and fruit. Decorate with confectioner’s sugar.