Cadillac Margarita - cooking recipe

Ingredients

1 1/2 ounces tequila
3 ounces prepared sweet-and-sour mix
3/4 ounce triple sec
3/4 ounce lime juice
Grand Marnier

Preparation

Shake tequila, triple sec, sweet and sour mix, and lime juice with ice.
Pour over ice in salt-rimmed margarita glass.
Float Grand Marnier on top. Garnish with slice of lime if desired.