Alfajores are a shortbread like sandwich cookies filled with dulce de leche (use your favorite or try Recipe #456857). These cookies will soften after the first day, which is desirable in an alfajor, but if you like yours crisp store the filling and cookies seperately and fill on the day you plan to serve them. Prep time does not include chilling the dough. Yield is approximate.
I went looking for a microwave version of Dulce de Leche - cause the whole idea of cooking a can for hours kind of freaks me out - mine would explode : )
This is can be used as topping or filling for all kinds of desserts - try it with Recipe #456560