2 c. sliced purple cabbage
4 c. boiling water
8 oz. tequila
4 oz. triple sec
3 oz. freshly squeezed lime juice
1 c. lemonade
4 lime wedges, for garnish
1/4 c. kosher salt or coarse sea salt, for rim
- Place cabbage in a large heatproof bowl. Pour boiling water over cabbage and let sit until water turns deep blue, 5 minutes. Strain out cabbage and let water cool.
- When water is no longer hot, transfer to ice trays. Freeze until solid, 4 hours.
- In a medium pitcher or measuring cup, combine tequila with triple sec, lime juice, and lemonade. Wet rims of glasses with a lime wedge and dip in salt.
Place purple ice cubes in glasses and divide margarita between them. Garnish with a lime wedge and serve.