Technique/Terminology of the week:
Lets do this in the form of a good old fashion multiple choice question:
Dirty ice is (select all that apply):
a. frosting that has been sitting out too long and has collected small amounts of dust
b. a layer of buttercream icing placed underneath fondant frosting
c. otherwise known as crumb-coating
d. a decorating technique which involves creating pornographic pictures on cakes
If you guessed "b" &"c" then you are correct. If you guessed "d", then you may be very disappointed with the remaining content of this post!
Dirty Icing/Crumb Coating is a technique whereby you place a thin layer of icing (most frequently buttercream) on an undecorated cake. On buttercream cakes, this layer will contain crumbs from the cake but will be covered up by the next layer of buttercream so that the outer layer is crumb free.You should let this layer sit for 10-15 minutes, even refrigerate to help set, before applying more buttercream. Dirty icing is also used with fondant cakes as a first icing layer to help the fondant stick.