Chick-fil-A’s Frosted Key Lime has nothing on this. This summery dessert is refreshingly tart and creamy, and the crunch and aroma from the graham cracker makes it taste just like Key lime pie. In other words, it’ll wow all your guests and is the perfect “light” way to round out barbecue or a backyard cookout. Look for Key lime juice in the juice aisle. If it’s not there, regular limes will do the trick.