The Thursday Cocktail Recipe…for the Weekend

1 ½ oz Catdaddy, 3 sugar cubes, 1 oz soda, 1 dash Angostura bitters, ½ oz lemon juice, ¾ oz grapefruit juice, ½ oz rum. Muddle sugar, soda and bitters. Add other ingredients & stir. Serve over ice in a highball, garnish with orange slice.