2 ounces Arrette Blanco tequila
1/2 ounce lime juice, freshly squeezed
Grapefruit soda to top
Garnish: lime wheel
Garnish: salt rim (optional)
Rub a lime wedge around the edge of a highball glass, and dip the rim in salt (optional). Add the tequila and lime juice to the glass, and fill with ice.
Top with grapefruit soda, and stir briefly to combine.
Garnish with a lime wheel.