To make the rellenitos, form a palm-sized amount of mashed plantains into a ball; flatten and place about a teaspoon of the bean mixture in the middle; then mold the sides of the plantain around the beans, making an egg-shaped ball.
4
Heat oil in a deep-fryer or large skillet to 375 degrees F (190 degrees C), or until a small amount of batter sizzles and browns in the oil. Fry rellenitos in oil until browned. Drain on paper towels.