Ingredients:
1½ oz Tequila
½ oz Triple Sec
1 oz. Lemon or Lime juce
(or, proportionately, 3:1:2 — which, if you do it by ounces, is both easy to mix in a measuring cup and makes for a double)
Note that if you use actual fruit juice (vs. Tequila Mix) in these proportions, this will be a very un-sweet tequila. That’s how we like them. You might toss in a teaspoon-full of powdered sugar to sweeten it up for folks who are used to Margaritas from TGI Fridays.
Source: Mr. Boston