The recipe says to use: 1 cup (2 2/3 oz.) elderflower liqueur. What does this mean? 1 cup is 8 oz. Why is 2 2/3 oz in parentheses? The directions don't seem right, even if it's supposed to 2-2/3 oz. 2 cups ice cubes, 1 cup of wine, 1 cup of raspberries and some amount of elderflower liqueur make 3 cups? I think it makes more than 3 cups.