1 thin slice jalapeno
1/3 C fresh lime juice
1 tsp extra fine sugar
2 C tequila
1 C Grand Marnier
1 C orange juice (optional)
Mix all the ingredients together in a blender. Pour into a pitcher over ice, and chill for an hour or so before serving with ice in salt rimmed glasses.
This margarta looks wonderful garnished with some celery sticks and with a twist of lime.