Step 1

In a large pitcher, combine the tequila, Cointreau (or Triple Sec), lime juice, and agave syrup. Stir well and refrigerate until ready to serve.

Step 2

If desired, rim the glasses with salt by rubbing a lime wedge around the edge and dipping into salt.

Step 3

Fill each glass with ice.

Step 4

Fill a cocktail shaker about three-quarters full with ice and add enough margarita mix to just cover the ice.

Step 5

Shake well for 10 to 20 seconds.

Step 6

Strain into the prepared glasses.

Step 7

Repeat for additional drinks, refreshing the ice in the shaker as needed.

Step 8

Garnish with lime wedges and serve immediately.