These are pineapple filled nidos (nests). They're made with a Mexican pan dulce dough, a yeasted dough that you can also use to make conchas, (shells), and other Mexican pan dulce, and then fill with a sweet pineapple filling.
For the dough, you can use a pan dulce dough, such as the one I used for funfetti conchas. It's very much like brioche or challah, super rich and yet very light. There is also a wonderful recipe in the book, The Mexican Bakery by Alex Peña. You can use it to make any form of bizcocho, which is a descentant of French brioche.
