If you like a salted rim, rub a lime wedge around the rim of your glass and dip it in salt.

Using a measuring jigger, pour 2 ounces of tequila into your shaker or stirring glass.

Pour in 1 ounce of fresh lime juice.

Fill the shaker with ice and shake vigorously for about 10 seconds.

Strain the mixture into the prepared glass filled with ice and top with 3 ounces of grapefruit soda.

Garnish with a lime wedge on the rim of the glass.

Taste and if you desire more sweetness, add a splash of simple syrup or adjust the grapefruit soda.

Serve immediately and enjoy.