1 cup sugar
1 cup water
2 2-inch sprigs rosemary
combine all ingredients in a small saucepan and bring to a boil, stirring to dissolve sugar. remove the pan from the heat, cover and let steep 20 minutes. strain through a fine sieve and store in a jar in the refrigerator for up to a month.
1 part gin (please use a decent gin, it does make a difference)
1 part rosemary simple syrup
2 parts fresh squeezed grapefruit juice
juice from 1/2 lime
place all ingredients in a cocktail shaker with ice and shake. pour over ice in a highball glass and add a lime wedge for garnish. add some salt to the rim of your glass if you so desire.