Step 1

Stir the lime zest into the salt then place the lime salt on a plate. Wet the rim of a glass with a cut piece of lime then roll the wet edge of the glass through the lime salt.

Step 2

Add the tequila, lime juice, and agave over ice in a cocktail shaker or mason jar and shake well.

Step 3

Pour your margarita into the rimmed glass and top with soda water.