This cocktail is a riff on the classic Harvey Wallbanger cocktail that was all the rage in the 1970s, which combined the Screwdriver with the Italina liquer Galliano.
Harvest Wallbanger (by Suzanne Miller)
1 ½ oz No. 209 Gin
4 oz. Orange Juice
½ oz Galliano
¼ oz. Chambord or Cassis to float on top
Shake over ice and pour over ice into a rocks glass. Garnish with orange wedge