Le Cave's Bakery, 1219 S. Sixth Ave.What do you do if the most beautiful of the trapeze artists is having a birthday, and you have invited the entire flying mob to your house for the party? Go to Le Cave's Bakery on Sixth Avenue, famous for doughnuts, and get the tres leches cake. It is a favorite festive cake from Mexico. There are regional variations, but all have the three milks in its name. Typically, it is condensed milk, evaporated milk and half-and-half cream. At Le Cave's, we've been told, it is sweet milk, sweeter milk and the sweetest milk. You can get an entire cake for a birthday party. If you're curious or in need of a secret snack, there are individual cakes with caramel topping.