Ok, here's a secret! Those packets of ready to cook rice you get from the store work really well if you don't have chilled rice on hand. Ideally, you want to cook up the rice the night before and let it chill in the fridge. This allows it to absorb moisture and the grains separate rather than clump together, in a pinch, you can chill it for a couple of hours, otherwise, ready to serve packaged rice will work a treat!