In a medium saucepan add 4 cups of water and salt to taste. Add the yams and cook over medium heat for 20 minutes. Drain and mash the yam.
Prepare the frituritas. In a medium container, add the boiled and mashed yams. Add the rest of the ingredients, mix until it forms a doughy mixture and season to taste.
Pour the corn oil into a skillet and heat. Pour the frying mixture by tablespoons and fry until golden brown.
Serve with your favorite sauce.