Step 1

Lightly crush or crack the coffee beans using a rolling pin or mortar and pestle. Transfer the beans to a small jar with a tight fitting lid. Add the vodka and seal the jar. Place in a cool, dark location for at least a week, swirling or shaking daily to mix.

Step 2

Strain the coffee extract to remove the crushed coffee beans. Discard the beans. Seal the extract and store in a cool, dark location.