Gather tequila, lime juice, orange liqueur, simple syrup, ice, and salt
Rub a lime wedge around the rim of each glass
Dip the rims in salt if desired
Add tequila, lime juice, orange liqueur, simple syrup, and ice to a blender
Blend until smooth and slushy
Taste and adjust with more lime juice, sweetener, or ice as needed
Pour into prepared glasses
Serve immediately