Baileys
Orange vodka (whatever that is - it sounds good)
Bitters
Chocolate flakes
No measurements provided, but discovery is half the fun. I would add just a little egg white and take an immersion blender to the whole thing before topping with the chocolate flakes. They are the genius ingredient, the je ne sais quoi missing from previous candidates.
In the event of a bitters shortage, the first runner up will fulfill the duties of official Santorum Cocktail:
1 gallon white rum
1/2 can albacore tuna
10 oz. Spanish peanuts
20 oz. African Fire Ants
Pour ingredients into empty potato salad container. Paint Romney's name in glitter-glue on side of container. Set on fire. Drink until you forget who you are.