You're gonna need to get some Vodka for this drink. 

I would ask that you get a potato-based Vodka.  Somewhat ensures that the drink itself will be Gluten Free.  I like to use Chopin's Potato Vodka. 

2 ounces (we’re making it strong!)

Half a fist of ice

Sugar (agave or honey)

1/2 a tablespoon of lemon OR lime

MIX it WELL.  (Shaken or Stirred)

Serve it Chilled!