Apple Shooter is based on a frozen drink called an Apple Sour Martini made at Macaroni Grill that used shaved Ice. This turned out to be much better as I tried to copy it at home. It turns out to be a sweet, refreshing, and strong Apple-flavored shooter. Shake the DeKuyper Sour Apple Liqueur, DeKuyper Triple Sec and Smirnoff Green Apple Twist together with Ice in a cocktail shaker. Strain into a Collins Glass, and serve.