Ingredients
o 1 cup blanco tequila (or more to taste)
o 1/2 cup triple sec
o 1 cup fresh lime juice
o 1 cup fresh grapefruit juice
o Club soda
Preparation
Combine all ingredient except club soda in large bowl and stir. Fill glass with ice, fill with cocktail and shake until cold (20-30 secs). Pour back into glass and top with club soda.