This is a recipe for a rice flour, soy milk, and red bean cake that can be made in just 3 minutes in the microwave. Simply mix together eggs, brown sugar, rice oil, and soy milk, add rice flour and baking powder and mix further, then add boiled red beans and heat in a mug. With its fluffy and chewy texture, this gluten-free, healthy dessert is perfect for a home café experience. It's easy to make, so it's also recommended as a snack or light meal.