Watermelon rind cake is a unique and delicious dessert made from the often discarded part of the watermelon. The rind is cooked until tender and then combined with flour, sugar, and other ingredients to create a moist and flavorful cake. This cake has a subtle sweetness and a hint of watermelon flavor, making it a refreshing and unexpected treat. It's a great way to reduce food waste and enjoy a creative twist on a classic dessert.