Coffee buttercream icing on chocolate cake, that's what I do with it! Also, as others have written, a dash of coffee extract will really enhance the flavor of chocolate.

How about a version of cafe au lait? Scald some milk and flavor it to taste with the extract and some raw sugar.

use a splash in your favorite brownie recipe.

How about using it to make coffee-flavored whipped cream, to put on top of a moist chocolate cake, or maybe even an Irish coffee?

Gelato or ice cream comes to mind.

You can use it in drinks and milk shakes ad frappes. You can use it to make coffee or iced coffee. A tiny bit would enhance chocolate recipes, like cake, brownies, custard tart. You could make coffee or mocha icing for it too. Here's one. With careful googling you can find more. I'll look later.
http://www.cdkitchen.com/recipes/recs/512/Cafe_Annies_Coffee_Extract_Cocoa_Pecan_Brownies31391.shtml

If this recipe is really from Cafe Annie it should be very good.