Kathy - here is the link to La Duni's recipe:
La Duni Latin Cafe Dunia Borga (Vanilla Mantecada Cake soaked in Cuatro Leches Sauce)Layered Mantecada Vanilla Sponge Cake, soaked in Cuatro
Leches Sauce, Topped with Caramelized Swiss Meringue and
Dotted with Arequipe Caramel Reduction, Served with extra Tres Leches Sauce and Arequipe Caramel