Shake the spirits with ice and strain into a Highball.
Fill with Grape Tonic and stir gently.
Serve with a Lemon Slice on the Rim and a Straw.
If you find the Grape Tonic too sweet, add a splash or two of Lemon Juice or Sour Mix.
A Sour Bank is made in an Old Fashioned with two ice cubes and Grape Fruit Juice instead.
A Southern Bank is a South Bank which has been added 1 part Southern Comfort.