The Castella Roll Cake is a delicate and airy Japanese-style cake, known for its soft, fluffy texture and mild sweetness. Inspired by traditional Japanese Castella sponge cakes, this roll cake is made by blending a light, low-protein flour with eggs, milk, and a touch of lemon juice, resulting in a moist, cloud-like consistency. It’s then gently rolled with a layer of filling, such as apple jam, custard, or whipped cream, creating a perfect swirl with each slice. The golden-brown exterior and tender, melt-in-the-mouth interior make this cake a delightful treat for any occasion, balancing simplicity with refined flavor.
