The mix? Margaritas are made with tequila. As for ice, it's usually served with crushed ice, or no ice at all. A margarita on the rocks might be a bit weird.
Edit: Ohhh, are you asking how much ice you put in the shaker? Go for 1/3 ice and 1/3 liquid. You need air at the top.
Post edited at 5:41 pm on Aug. 27, 2008 by dissilusioned
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"I'm the molester
The coolest mole in the hill." - Matt.
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