250 ??grams of red beans, 4 cups of boiling water, 1/2 cup of water, 3/4 cup of sugar or 1/2 cup of rice flour according to the amount, 1/4 cup of clear flour, 2 tablespoons of oil, 1 cup of water chestnuts Jin, one kilogram of powder, 5 kilograms of water, use half a kilogram of sugar.

1. Rinse the red beans, remove any debris, soak in cold water for 2 hours, and drain. Mix 2 kinds of dry powder.

2. Put red beans in a 3-liter deep pot, add 4 cups of boiling water, cover, heat over high heat for 5 minutes and the water will boil. Switch to medium heat and cook for 40 minutes, then heat over high heat for 20 minutes. At this time, there is about 1 cup of water in the pot, and the bean juice is released, and the red beans are reserved for use.

3. In a large bowl, add 1/2 cup of water, rice flour and noodles and mix well. Add 1 cup of boiling red bean juice.

4. Mix sugar and oil into the red beans to dissolve, slowly pour in the slurry, and stir continuously until even.

5. Pour the red bean cake batter into an oiled long plate, wrap it tightly with plastic film, and cover the four corners with aluminum foil, dumb side outward.

6. Place the cake plate near the edge of the turntable and heat over high heat for 8 minutes. Move the cake plate to a 180-degree position and continue to heat over medium heat for 7 minutes. Set aside to cool before cutting into cubes and serving.