Break up large chunks of pre baked cake or cake scraps.
Start blending on the thick setting and low speed for about 1-2 mins. Stir the cake to make sure the large pieces are broken up.
Change the setting to thin and the speed to high.
Mix for 1 min and stir.
Pulse a few times to really break up the cake.
Add 1 tbsp of water, mix on thin and let it go for about 2-3 mins. You will see the cake crumbs begin to look like a tornado.
Add one more tbsp of water and hold the top cover.
Mix on thin setting/high speed for about 30-45 seconds.
The cake will form a dough.