I have an Orange Supreme Duncan Hines cake mix, and I want to make a delicious father's day cake...I also want to decorate it with marshmallow fondant...is this a good combination?  And what would be a good frosting/filling combination.

Help please?

What about white chocolate ganache whipped for filling and crumb coat under the MMF?  I think MMF and orange would be a great combo...or vanilla bean buttercream?  Or an orange flavored buttercream?

Hi, look on sugarteacher blog and see recipe by mame. I can,t remember her filling, but i love chocolate with orange. You could use a mascarpone filling also. That would be great. So many recipes on the internet for that also. you use whipping cream with it . hth