Pastafrola or pasta frola is a tart from Uruguay, it is similar to Linzer Torte. It is based on a pie crust, which is then filled with quince paste. A simple tart on the one hand, yet also unusual as it uses quinces for the filling. I often wonder why there are so few recipes out there with quince? At least here in Germany it is really hard to find. Quince is a very common fruit in Uruguay. Dulce de membrillo or quince paste is basically dense jam, which comes in squares and can be cut in pieces. However, in Germany you may find quince jam, but even that is super hard to find. So for that reason you will either need to buy quince paste on Amazon or you will need to make quince paste yourself. Funnily enough, quinces are sold in grocery stores in Germany, so you may have a chance.