Here's the expanded flavors version of the WASC cake recipe:
http://tinyurl.com/2cu8s4
You can use liquor or liquer and make a lot of other interesting flavor variations. 
HTH
I'll use it in place of some of the water... and in some cases, give the cake a good soak with it afterwards. (Usually made into a syrup with water and sugar, boiled a bit).
If it's just for friends, I don't bother boiling it, and add more. My pina colada cake would knock anyone flat on their butt
I've used several recipes from the Cake Mix Doctor books that have alcohol in them.
I've used Kahula, vodka, margarita (margarita mix, tequila and triple sec, lime zest), bourbon, beer......my cupcakes are for adults!
I also use the alcohol in the icing too. The kahula and (Guinness) beer worked well in cream cheese icing. The bourbon was good in a chocolate glaze. The margarita was basically a buttercream icing with all the margarita fixings in it.
I've never had any leftovers!
I'll use it in place of some of the water... and in some cases, give the cake a good soak with it afterwards. (Usually made into a syrup with water and sugar, boiled a bit).
If it's just for friends, I don't bother boiling it, and add more. My pina colada cake would knock anyone flat on their butt
Can I be your friend??? 
I do, but no more than 1/2 cup per box...... for example my pina colada cake has 1/2 cup golden rum per 3 boxes of cake mix.
Umm, that sounds good, is the recipe here on CC?
No is from the Caeke mix doctor
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