Drink-Sparkling Apricot Mint Sours

1 cup fresh lemon juice

1/4 cup fresh lime juice

3/4 cup simple syrup

12 fresh mint leaves, plus sprigs for garnish

1 tablespoon superfine sugar

1 cup apricot nectar

12 ounces gin

Crushed ice, for serving

Prosecco

For the sour mix: Mix together the lemon juice, lime juice and simple syrup. Cover and refrigerate until cold. Muddle the mint in a pitcher with the sugar. Pour in the apricot nectar, gin and sour mix and mix until combined. Serve in rocks glasses over crushed ice. Top with splashes of prosecco and garnish with mint sprigs.