2 liters ice cubes
1 (340 g) can frozen limeade concentrate
360 ml tequila (measure with empty limeade can)
60 ml Cointreau
margarita or kosher salt for rimming
lime slices, halved
Step 1
In two separate batches, blend 1 liter of ice cubes with half of the limeade concentrate, 180 ml of tequila, and 30 ml of Cointreau until smooth. Transfer to a pitcher and repeat with the remaining ingredients. Freeze the slush.
Step 2
Rim the margarita glasses with salt by moistening each rim with a lime and dipping it into the salt. Pour the slush into the glasses, garnish with lime, and serve immediately.