I've tried Chef's Vapour Banoffee Cookie Dough, mixed it at 40% and after a month, the flavour is there for me, but not exactly overpowering. You might get more out of it, as I do struggle.
let me know if you get a good toffee, please? As for cookies ... Flavourart's Cookie is good, quite buttery, I prefer Inawera's Biscuit as it's a tad drier, more crumbly and blends well.Thanks, I can get my own banana and toffee with a cookie type juice and give it a whirl I suppose
More bloomin concentrates!
As nice as the Chefs own blends are they do seem weak as suggested mixing is between 20-30 on most. However the exception to that rule is Twisted. Very strong taste (similar to the ice cream lolly) at 15%. Might suit your taste as I said its strong fella.
Back to the OP sorry no. Only tried pre mixed and those were crap.