1. Tools/materials: gelatin 3 tablets, milk 70g, blueberry jam 170g, whipped cream 200g, rum 10g, molds, cake embryos and decorations.

2. Dissolve the gelatine tablets in water first, then add milk and blueberry sauce in another container and stir well.

3. Then add the gelatine tablets and stir well. Then beat the whipped cream to 60%. Then add rum and mix well.

4. finally, lay a layer of cake embryo and a layer of mousse paste in the prepared mold and put it in the refrigerator for more than 2 hours.

5, finally demould, cut into your favorite size, and then decorate with cream or favorite fruit to enjoy.