Limoncello was the first infused alcohol I ever made, and it is still one of my favorites. I recently brought some to my Italian mother-in-law and even she approved of it! The recipe involves infusing vodka with lemon peel and then mixing it with simple syrup. I recommend starting by adding only half the simple syrup and tasting it; that way you can make it as sweet or as strong as you want. This recipe also works well with limes, oranges, and other citrus for fun variations on the drink. Using the infused lemon vodka in a martini or mixed drink is also a great way to go!