1. Print the sponge cake into a circle with a circular mold
2. Stir the whipped cream
3. Stack the bread, and apply a layer of butter directly on each layer
4. Coat the inside of the middle hole with chocolate and wait for it to solidify
5. Pour in strawberry jam
6. Use a round mold to press out the bread slices, then cover the top
7. Cut the bread into oval shapes with a knife
8. Add food coloring to the cream to add color
9. Spread a layer of butter on the surface of the bread
10. Just squeeze the cream into a brain shape
