Making the Dough for the Mini Tart Shells These tartlet shells are made with very common pantry staples that you probably have at home. The only ingredients you need to make these delicious tarts shells are some flour, butter, powdered sugar, pure vanilla extract, salt, and an egg. You can choose to omit the sugar in the tart dough if you prefer. In fact, that is exactly what I did when I made these mini cherry clafoutis tarts. I felt that the custard filling was sweet enough, and the dough didn’t need any extra sweetness. The one thing you must…