Hi there, Rick! You sure can experiment with swapping the milk for buttermilk! We haven't tried it our selves but would suggest just switching out the milk and not making any other changes. The cake and frosting have enough sweet notes to them that the acidity of the buttermilk shouldn't create an undesirable flavor. Happy baking! Morgan@KAF
March 5, 2019 at 12:36pm
In reply to Would it be possible to use buttermilk instead of whole milk? … by Rick Lanzetta (not verified)