STEP 1/12
Mix egg yolk with 5 eggs and add sugar and starch syrup Add some foam
STEP 2/12
Add cocoa and flour
STEP 3/12
Mix the butter and milk together, melt it, and mix it
STEP 4/12
Pour the foam little by little on the place where you used to raise the foam.
STEP 5/12
Add bubbles until the color is powdered
STEP 6/12
Add cocoa powder into the foam
STEP 7/12
Mix it a little bit, put sheet paper on the pan, and pour the batter
STEP 8/12
Bake the sheet at 180 degrees for 7 to 30 minutes
STEP 9/12
Add cream cheese and custard cream, add whipped cream until thick and mix together
STEP 10/12
Spread the cream cheese on the chocolate sheet
STEP 11/12
Draw 3 lines of bread so that it doesn't get cut
STEP 12/12
Roll it up At once