[Solumina]

I don't have any cardamom on hand and I was going to make the buttercream tonight but it is something to think about for the future. I'm not really worried about the cinnamon being overwhelming, I usually make a swiss style buttercream, not a french one so it will not end up being quite a sweet and therefore hint of cinnamon should do the trick.

That maple bourbon frosting could be rather yummy.