Dare to prepare these delicious Mexican desserts commonly sold by street vendors, who roam the streets of Mexico City in their characteristic mobile wood-fired ovens shaped like carts, offering typical sweet potatoes and ripe bananas.The trade of these vendors has been a tradition since the 19th century and although there are fewer of them now, they still remain and fill the streets with their characteristic whistle announcing they are ready to eat. Ready to prepare these sweet potato and banana recipes?