One brutally hot summer in Central Pennsylvania, my best friend AJ and I went to a barbecue at his manager’s house not far from Three Mile Island. Her home was set way back in the woods and required a little bit of off-roading to access, and consisted of acres of untouched land attached to a staggering country-style home overflowing with balconies. We sat on the deck just as the sun dipped behind the trees enough to start to give us relief, and Ruth greeted us with glasses of homemade limoncello. It tasted like sunshine kicking you in the face, and we raved about it. I promised myself that I’d make my own limoncello some day and share it with my friends on my own deck.