Grodziskie is such a light, effervescent beverage, maybe the answer to your question lies in the complete opposite direction.
watching Brew Dogs in Michigan and a youtube video about Funky Buddha Brewery in Ft Lauderdale (our vacation destination this year) and they're talking about Breakfast Stouts
think smoked wheat malt would make an excellent addition to that type of grain bill; anything having to do with maple flavorings. something big, bold, roasty. with cocoa or coffee or vanilla or something aged on bourbon or oak any combination of all the above
I will make that beer someday