1 oz of grenadine syrup
2 oz of London Dry Gin (or Gin)
Ginger ale
ice
1 of Lime Juice
1 of slilce lime
Vigorously shake the first three ingredients with ice in a cocktail shaker until water condenses on the outside of the shaker.\r
Strain onto a Collins glass full of ice.\r
Fill the glass with Ginger Ale.\r
Decorate with the lime slice.