2 oz. tequila
2 oz. fresh squeezed grapefruit juice (or store bought)
1 tsp simple syrup
1 jalapeno (to shake and garnish)
1 club soda (optional splash to finish)
Pour tequila, juice, syrup, and jalapeno into cocktail shaker with ice. Pour over ice, garnish with reserved jalapeno and finish with club soda. Stir, and enjoy!