Colleen's Notes: As far as the whiskey goes...I will say this, use what you would drink. The better the whiskey, the better this Irish Cream. I always say taste & adjust...SO If you adore coffee, feel free to add a little more espresso. If you only have instant coffee, you can use that the taste is just a little less. If you want more of a kick in the teeth from the whiskey...add more. More chocolate...add more. You get the picture. You really can't mess this one up.