1. Prepare the ingredients used.
2. Mix the eggs and sugar together and beat until saccharified.
3. Milk, blueberries, and chocolate syrup are mixed together.
4. Add to the egg mixture and continue beating until combined.
5. Peel the walnuts and bake at low temperature for 10 minutes.
6. Add cocoa powder and baking powder to the egg mixture.
7. Stir until there is no dry powder, then add corn oil and continue beating until combined.
8. Put all the mixed egg mixture into the piping bag and put it in the refrigerator for one hour.
9. Put a paper tray in the cake mold, squeeze the cake liquid and add the walnuts.
10. Bake at 170 degrees for 25 minutes in the oven.
11. After roasting, let it cool and you can eat it.
