Coffee and alcohol are two of the best beverages on the planet, so combining them is just common sense. But I didn't really understand the true genius of coffee liqueur until I went to Hawaii and noticed it in unexpected places—in old school fruity umbrella drinks like the Bahama Mama and new Tiki creations made with coconut, falernum and lime, on top of a tropical fruit salad, and even shaken up with cinnamon, chiles, and cream. I had been pigeonholing coffee liqueur as just a part of a White Russian, only to find out that its potent flavor actually blends well with a variety of ingredients.
'Tia Maria' on Serious Eats
DIY coffee liqueur tastes like like a fresh cup of coffee with added depth from rum and just enough sugar to make it great for sipping or mixing—or baking and dessert garnishing. The quick steeping time means no patience is required.
Many bourbon lovers occasionally spike a cup of coffee with a slug from their favorite bottle; the Revolver is the same flavor principle in reverse, putting the bold bite of the whiskey up front and rounding out the flavor with coffee and the brightness of orange peel.