2 oz of Vodka
1 tsp of powdered sugar (or sugar)
1 tsp of water
1/2 of msr tequila (or Agavero Tequila Liqueur)
Dissolve powdered sugar in water and lemon juice. Add vodka, pour into an old-fashioned glass over ice cubes, and stir. Garnish with a twist of orange peel and serve.