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