Citrus Pomegranate Champagne Smash

Bahan-bahan (1 porsi)

• 8 fresh mint leaves
• 2 tablespoons pomegranate juice
• juice from 1/2 a blood orange or regular orange
• 1 ounce Cointreau ((orange liquor))
• 2 ounces ginger beer ((optional))
• champagne or Prosecco, chilled, for topping
• pomegranate arils and orange slices, for serving