Razzleberry is a type of pie commonly made with raspberries and blackberries. 
In popular culture
A reference is made to razzleberry (dressing) in the 1962 Mister Magoo's Christmas Carol.
Reference is made to In a 2012 episode of My Little Pony: Friendship is Magic entitled Baby Cakes there is a Razzleberry Pie.
On The Mindy Project, Heather (played by Ellie Kemper) bakes Mindy a Razzleberry Pie to apologize for attacking her at her party.