Peel the mango and freeze for 6 hours.

Squeeze the juice from the lemons.

Add sugar to the lemon juice and stir until dissolved.

In a blender, combine the mango, lemon juice, tequila, and ice. Blend for 1 minute until smooth.

Moisten the rim of the glass with lemon juice.

Spread salt on a plate, turn the glass upside down, and twist to coat the rim with salt.

Pour the mixture into the glass and enjoy.