If rimming the glasses, rub the rim of each glass with a lime wedge and dip into salt or sugar. Set aside.
In a blender, combine the frozen strawberries, tequila, lime juice, triple sec, and simple syrup. Add a handful of ice cubes if a thicker consistency is desired.
Blend until smooth and well combined. Taste and adjust sweetness with more simple syrup if needed.
Pour the strawberry margarita into the prepared glasses.
Garnish with a lime wedge and a strawberry slice, if desired.
Serve immediately and enjoy!
Notes
This recipe is easily adaptable. For a non-alcoholic version, omit the tequila and triple sec and add more lime juice and a splash of water or club soda.