I love the taste of vanilla – especially when there’s tons of it, especially vanilla bean anything. Still! If you’re not fond of vanilla, don’t have some on hand, or just want to try something new, you can substitute most liqueurs for vanilla. Kahlua, creme de cacao, creme de menthe – Rumchata, too, if you’re feeling like an extra cinnamon kick.
I haven’t tried fruit liqueurs, and that’d probably depend on the recipe, but I think I might try raspberry liqueur in my dark chocolate fudge next time I make it.