1 1/2 oz of sweet and sour mix
1 1/2 oz of Absolut Citron Vodka (or citrus-infused vodka)
1 splash of grenadine syrup
1 slice of lemon
Combine equal parts of Absolut Citron vodka and sweet and sour mix over ice in a cocktail shaker. Shake well; add juice of one lemon slice and grenadine, then strain into a large shot glass or small old-fashioned glass. Sprinkle sugar around the rim of the shot glass, and serve.