This is way too much vodka. I even switched to 1 oz to 1oz and it was still too much vodka. It is much better if you use 1.5 - 2 oz of juice to 1 oz vodka. I also used 100% natural jucie which wasn't very sweet or smooth. I would recommend using a juice cocktail. They also sell blueberry vodka which is better than plain vodka for this recipe. The bottom line, it took lots of tweaking to end up with an enjoyable drink.