Passion Fruit Margaritas

Dip the rim of a double rocks glass in a small amount of water and then dip into a container filled with salt or tajin and fill with ice. In a cocktail shaker, combine the tequila, grand marnier, passion fruit, lime, and simple syrup with a couple cubes of ice and shake vigorously. Strain into the prepared cocktail glass and garnish with a dehydrated lime slice, if desired.