Sour Cherry
This is the basic vanilla recipe plus 1 teaspoon of the flavoring shown. It adds a bit of sugar, but it doesn’t take much to get a whole new flavor.
I’m not a huge fan of fruity candy (Starburst, Sour Patch, etc.) but if you are, you’ll like this one. I tossed in about 1/4 cup of chopped cherries as the mix-in.