Bright colorful and full of citrus notes with a touch of pine, this is a sophiticated drink.
Crush rosemary in your hands to release oils and place in a pitcher.
Fill pitcher with ice and tonic.
Cut grapefruit in 1/2. Squeeze the juice of half of the grapefruit into the pitcher. Cut the other half into wedges and stir into the tonic.
Pour into ice filled glasses and enjoy. Garnish with extra small rosemary sprigs.