For colored crumbs (sponge cake): whisk the egg, sugar and glucose syrup. Syrup can be replaced with honey. Then add flour and baking powder, mix. Add the dye of the desired color… I added lilac and a little blue. Pour the dough into heat-resistant glasses. Pour 1/3 cup, cover with foil and put in the microwave for 1 minute-850 watts, the time will depend on the power of the microwave.
Cool, remove from the glasses.
For the crumbs, dry the biscuit, crumble, sift through a sieve and decorate. This sponge is used as a decoration.