Lustre hervido (merengue italiano) y lustre de chocolate
------ Boiled Frosting: • white sugar (about 300 grams) • water (120 ml) • egg whites • Juice of half a lemon • Vanilla extract or desired flavoring • --- Chocolate Frosting: • (about 2/3 cup) unsalted butter • unsweetened cocoa powder • sweetened condensed milk (14 oz / 397 grams)