Place all the ingredients in a jar with a tight fitting lid and shake. Store in a cool dark place for 3-5 days. Shake the jar a few times each day. Begin tasting on day 3 to see if it's the desired strength.
When desired strength is reached, strain through a fine mesh strainer into a clean jar. Infused liqueurs keep indefinitely.
Time for the recipe includes just the prep time. The infusion actually rests for 3-5 days.