Vanilla Pear and Vodka Cocktail

12 oz (1.5 cups) pear juice
6 oz vodka
1/2 vanilla bean, seeds scraped
vanilla sugar, for rim
1 cup ice, plus more to serve over
Mix pear juice and vodka in a pitcher or shaker. Split open the vanilla bean, and scrape the seeds into the juice and vodka. Add 1 cup ice, then give it a good shake. Pour into cocktail glasses over more ice and serve with sugared rim. Makes 4 drinks.