To garnish the glass add a little corn syrup in a bowl and a few drops of red food coloring until you achieve the desired color.
Rim the cocktail glass with this red corn syrup and put it in the freezer. The syrup will slowly drip down the side and harden in the freezer. This takes maybe 5 to 10 minutes.
To prepare the cocktail add the remaining ingredients into a shaker tin with ice.
Shake well and strain into the cocktail glasses you’ve garnished.