One recipe for fried sweet plantains using sugar comes from Tyler Florence on Food Network. The recipe features a prep time of five minutes and a cook time of 20 minutes, and it makes four servings.
To prepare the recipe, start with two or three ripe, black plantains. Cut off the ends, and cut three vertical slits down the length of each plantain to facilitate peeling. Split each plantain in half lengthwise before heating 4 tablespoons of unsalted butter over low heat in a large skillet. Fry the plantains without letting them pile on top of each other, and be careful not to keep the heat too high as the high sugar content of plantains leads to easy burning. Once they become golden on the bottom, flip the plantains with a spatula.
Sprinkle 1 teaspoon ground cinnamon, 2 tablespoons brown sugar and 1 teaspoon natural vanilla extract over the plantains, and continue cooking for several seconds until the sugar begins to caramelize. Melt another tablespoon of unsalted butter in the skillet to create the sauce, and serve immediately. Alternative preparation options include using 1-inch chunks of plantains rather than long slices, using coconut oil in place of butter, and adding a pinch of salt to the recipe.