You can adjust the strength of this drink by changing the amount of lime juices used, but it is important to keep the two amounts of lime juice equal.
- Moisten the rim of a margarita glass with lime juice; dip into coarse salt or hold inverted& sprinkle coarse salt over the outside of the rim.
- Place cubes in a cocktail shaker and add the rest of the ingredients (use equal amounts of fresh lime juice and sweetened lime juice).
- Shake briskly.
- Pour into glass, garnishing with a lime slice or wedge (if desired) and serve.