What is the history of arroz con leche?
it is Cuban rice pudding
this is not just a Cuban rice pudding like the person before said. This is actually a Latin American dessert that goes all the way back to Spain. Many Latin American countries have their own variations to the recipe, but all of them include rice, sugar, and milk. According to an article I read the moors were possibly the first to introduce this dish to Spain. Arroz con leche was actually made out of convenience to people back in the time before refrigeration. They would use left over rice, so they wouldn't have to waste it.
The common foods called Cuban cuisine are those that would be found in the native cultures of American Indians, African slaves or Spain. Consider dishes like Arroz con leche (Rice Pudding). Okra and rice (Arroz con quombombo). Frijoles con Colorado con carne de puerco (Red kidney beans with pork). Fish and chicken. Yams, Mangoes and bananas.