What to do to get abs/flat stomach?

I am 5'5" and 118 pounds, i want to lose the remaining fat on my stomach and want the nice flat stomach and the outlining of abs. I don't want to be like a boyd builder abs. Anyways I work out 4-5 days a week. I do the elliptical for 35 mins and burn around 270 calories, and then move on to do 300 crunches. What should I do to get the stomach/abs I want?