Hi the back was not cake. I used a regular square cake board, covered in sugarpaste and skewered cocktails sticks into the board and then into the cake.
Even though it stayed secure on the cake, it moved around a little when you carried the cake around! It was very nerve wrecking. I was so relieved when the customer said the cake survived the drive home, and stayed well the whole night until the party on the following day.
Do come visit me at www.facebook.com/sweetlittlebakes. Thanks x