1 1/2 oz of Tequila
1/2 oz of grand marnier orange liqueur (or orange liqueur)
1/2 oz of drambuie scotch whisky (or scotch whisky)
sweet and sour mix
Pour the tequila, Grand Marnier, Drambuie and sour mix (to taste) into a cocktail shaker half-filled with ice cubes. Shake well. Pour into a salt-rimmed margarita glass, garnish with a slice of lime, and serve.