Jul 8, 2024 · Topped with a deliciously bittersweet caramel sauce, Purin (Japanese Custard Pudding) is a popular homemade dessert. This recipe is Japan‘s take on crème caramel—also called flan or caramel pudding. Follow my tips for a foolproof caramel and a silky smooth custard. Oh, purin, sweet custard pudding.