I saw 'homemade Irish cream liquor' pop up on Punk Domestics facebook wall this morning and started clicking. First there was Southern Faire's version, with half-and-half plus heavy cream. Arctic Garden Studio's version includes instant espresso powder. Hmmm....
The one I ended up using for my jumping off point was Design Sponge's Irish Cream; it calls for honey and dark cocoa powder. I might give the Irish Flag cocktail a go from this site - after I make some Irish carbomb cupcakes, of course.
1/2 t unsulphered molasses
While that is cooking, whisk together the eggs, brown sugar, flour, and baking powder. Remove the saucepan from the heat; whisk in the egg mixture. Let cool for about 5 minutes. Then whisk in the whiskey until completely blended. Transfer to sterile lidded containers, drop in a whole vanilla pod in each jar, and store in the fridge.