To me, mayhaw tastes like apple&strawberry combined. My aunts make it from scratch in Louisianna each year, and we literally fight over who gets how many jars of it in the family!
Mayhaw is the best!!! They sometimes have it at Froberg's. Buccees also has it. My Grandmother makes it and it is soooo good, we also fight over who gets how many jars.
We had a patch of plum trees when I was growing up. My parents made plum jelly and it was good! The only plum jelly I've found since then is when someone makes it at home.