Not a huge difference as far as I can tell. The Clément Créole Shrubb is rum-based and therefore it makes sense to use it in rum cocktails. I prefer it to Cointreau in Mai Tais for example, although the difference is quite subtle. Grand Marnier being cognac-based is not very versatile in cocktails in general and I hardly ever use it (for Crêpes Suzette maybe).
Do you find any difference in a drink with Creole Shrub as compared to using Curacao? Seems like the shrub would bring something slightly different the way the brandy based Grand Marnier is a little different from Cointreau/Curacao.
There is an extensive review of orange liqueurs on the Oh Gosh! blog that I found very informative.
Thanks. I quite like Clement Creole Shrubb myself but haven't done anywhere near the amount of cocktail experimenting you have! I have been through the Oh Gosh! orange liqueur threads before but was just curious on your thoughts given you have seem to be playing with different types almost everyday.
I need to try to do more. I don't have as many different options as on the Oh Gosh! site but I have managed to end up with 8-10 different orange liqueurs that deserve more regular use.
Edited by tanstaafl2, 11 January 2013 - 12:55 PM.