2 oz of Tequila
1 1/2 oz of grapefruit juice
3/4 oz of simple syrup
2 oz of Prosecco (or Champagne)
7 slice of Cucumber
1 twist of lemon peel
Slice cucumber very thinly. Muddle the cucumber. Add tequila, grapefruit, and simple. Shake and strain into a collins glass with rocks. Top off with prosecco. In and out lemon twist. Garnish with a thicker cucumber slice.