Prepare the glass by dragging a lime wedge around the outside of the rim and dipping the rim in salt to coat. Use a salt rimmer or salt spread on a plate.
Add the tequila and triple sec to a shaker filled with ice and shake for 10 seconds.
Strain the tequila and triple sec mixture into the prepared glass filled with ice.
Balance with Jarritos.
Add an optional lime wedge for garnish.