Key Lime Cheesecake Day is observed worldwide every September 26, celebrating the delicious dessert known as key lime cheesecake. This holiday was established in 2015 as part of a series of cheesecake-inspired observances created by Patti Jewel and her team at HolidaySmart, following the original Cheesecake Day designated in 1985. Key lime cheesecake is similar to the iconic key lime pie, which is recognized as Florida's official pie, but features a cream cheese filling instead of the traditional egg yolks and condensed milk. The day encourages people to enjoy this delightful dessert, often by making their own key lime cheesecake at home. The recipe typically includes a graham cracker crust and a filling made from cream cheese, sugar, lime zest, and key lime juice.