Conchas are named after the shape of their sugar topping, which resembles a seashell. Conchas do have a hardened crust, but it is sugary, thick, crispy and crumbles right into your mouth as you take a bite. Right after you brake through that crust, there is a fluffy, soft, sweet roll made with flour, butter, yeast and eggs. With such a pleasing experience, no wonder it is one of Mexico’s most favorite sweet rolls or pan dulce.