April 20th is Pineapple Upside-Down Cake Day, a delightful holiday dedicated to this retro dessert that’s as fun to make as it is to eat. With its caramelized pineapple rings, cherries, and moist cake, this treat has been a favorite for decades. Whether you’re a baking enthusiast or just a lover of sweets, this day is the perfect excuse to indulge in a classic dessert that never goes out of style.