Don't let all the talk about baking being a science scare you. There's plenty of wiggle room in all that Alton Brown-esque chemistry jive to tweak a cookie recipe or pump up the flavorings and make a dough that successfully produces a cookie. (Heck...I've made a blog out of doing just that!)
For my next few cookies, I'm going to take a classic oatmeal cookie recipe--Better Than Grandma's Oatmeal Raisin Cookies--and improvise some variations. By building tweaks upon tweaks, you can turn a single simple, flavorful recipe into a few complex, delicious recipes.
One trick is to enplumpen the raisins with a flavorful liquid. Booze like rum would be perfect. After all, rum and raisin is a classic combo. Another trick is to replace a portion of the raisins with another mix-in. You can never go wrong with chocolate. You could also replace a portion of the oatmeal with another dry ingredient. Coconut would be great.
See. It really is that simple! Stay tuned for some improvised recipes.