What happens when you start out making a Sea Breeze and then add the herbaceous aromatics of basil and sweetness of syrup? This is what happens.
2½ oz. Grey Goose vodka
1½ oz. fresh grapefruit juice
¾ oz. simple syrup
1 fresh basil leaf
Making it: Muddle basil with simple syrup, add ice and liquid ingredients, shake until chilled, strain into a martini glass; garnish with fresh basil.