Ingredients

• 2 limes, halved
• 3/4 cup apple cider vinegar
• 3/4 cup sugar
• 2 tablespoons honey
• 1 1/2 teaspoon crushed red pepper flakes
• 2 cups tequila blanco
• 1 1/2 cups Campari
• 3/4 cup fresh lemon juice
• 3/4 cup fresh lime juice
• 8 lime wedges (for serving)

Instructions

1. Bring all ingredients to a boil in a medium saucepan. Reduce heat; simmer until slightly reduced, 8–10 minutes. Let cool, then strain into a jar. Cover and chill.
2. Combine tequila, Campari, lemon juice, lime juice, and shrub in a large pitcher.
3. Place 1 1/2 cups tequila mixture in a cocktail shaker; fill with ice. Shake until frosty, about 30 seconds. Divide between 2 rocks glasses filled with ice; garnish each with a lime wedge. Repeat 3 more times.
4. DO AHEAD: Tequila mixture can be made 6 hours ahead. Cover and chill.