Color-Changing Slushy Margaritas

Bahan-bahan (10 porsi)

• 2 cups red cabbage, chopped
• 4 cups water
• 1 1/2 cups tequila
• 1 (12 ounce) can limeade
• 4 cups water
• 1 1/2 cups tequila
• 1/2 cup triple sec