In a deep fryer or a skillet deep enough to cover the plantain slices, heat the oil until it is hot, but not smoking. In a small bowl, combine the water, ginger, salt and ground red pepper. Drop the plantain slices into the hot oil and deep fry until golden brown, about 3 to 5 minutes. Remove the fried slices with a slotted spoon. Drain on paper towels. Yields 6 servings.