Spicy Pomegranate Moscow Mule

Bahan-bahan (1 porsi)

• 2 ounces vodka
• juice from 1/2 lime juice
• juice from 1/4 of a small grapefruit, plus grapefruit slices for serving
• 1/3 cup pomegranate juice
• 1 -2 jalapeño slices
• ginger beer, for topping
• pomegranate arils, and fresh mint, for serving