So I was browsing FoodNetwork's website and saw this super simple recipe for a frozen mojito. I think it's by Bobby Flay.
It just takes simple syrup, some mint, some lime and lots of ice (and rum!).
You make simple syrup in a 2:1 ratio of sugar to water and just boil it till it all dissolves and goes clear.
My roommate said she hated me because my mojito came out way better than the ones she'd made for a party then asked me how I did it. It was damn good and the rum was cheap, but it's the best tasting cheap white rum I've had. $10 bucks for a bottle that size... how can you go wrong? How could you not want to get drunk off of that?!