My neice wants caramel buttercream on a banana spice cake, and I saw that the Wilton recipe reduces the crisco/butter, and adds caramel ice cream sauce. Does anyone have any idea if this would work with IndyDebi's buttercream? I also somewhere just to add the caramel sauce after making it like usual - but figured I'd run by you all first and maybe not waste a whole batch.

Any thoughts? Thanks so much!