Japanese Cheese Castella Cake Recipe is a soft, fluffy, and slightly jiggly sponge cake with a rich, buttery aroma and a subtle sweetness. Inspired by traditional Japanese castella and Taiwanese soufflé cakes, this delightful treat features a delicate, airy texture with a deliciously creamy layer of melted cheddar cheese. The combination of light and fluffy cake with a hint of savory cheese creates a perfectly balanced flavor that melts in your mouth. Baked using a water bath method, this castella cake stays incredibly moist and tender while achieving a beautiful golden-brown top. Whether enjoyed as a snack, dessert, or paired with tea or coffee, this cheese-infused castella cake is a must-try for anyone who loves soft and cloud-like cakes with a unique twist!