I am stacking a 2 tier cake: 6" and 9" square. They are heavy and tall with 4 layers of cake and 3 layers of filling, to be frosted in buttercream.
Do I need to put a dowel down the center of the 6"?
Should I be ok, stacking it and delivering it, 20 min away or is that risky?
Haven't done this on a buttercream cake, or one this tall.