Step 1

Into a cocktail shaker, mix 3 parts good quality tequila, 2 parts orange liqueur and 1 part lime juice, simple syrup and zest of one lime, if desired.

Step 2

Rub a wedge of lime around the rim of a rocks glass. Coat rim with kosher salt. Fill with ice.

Step 3

Pour margaritas into glasses and garnish with lime slices.