I've got about 10 different grape concentrates and I've been experimenting with grape flavours for a long time. I'm a grape addict. My favourite grape vape is called Sinister Grape by Evaperated. I can't make one as good as that, but I did come up with this beauty.
I had this recipe without the Greek Yogurt (CAP) for ages. It was ok.
I added the yogurt slowly up to 5 and fell in love. It simulates the tartness of an actual grape and makes everything taste so bright. I hope you love this recipe as much as I do!