Buttermilk | Chocolate - Buttermilk does to chocolate what salt does to caramel: it enhances the taste and makes it more vivid. Its gentle acidity cuts through richness and keeps cocoa from tasting heavy or flat. Callebaut Plein Arôme cocoa is aromatic, full-bodied cocoa, so you get a deep chocolate flavor against that slight buttermilk tang. This gelato tastes simultaneously richer and brighter than a conventional chocolate gelato.