If you’ve been baking for any length of time, you probably realize what causes certain cookies to flatten out into pan-like disks and other cookies to remains fluffy. It’s not magic; it’s physics. By adjusting your ingredients (the flour, the fat) and then adjusting the oven, you can predict which way things will turn out. Knowing helps make baking a more reliabel process.
The finishing texture depend on how you prepare your fat. When butter is creamed, air bubbles are trapped within the fat. In a hot oven, these bubbles inflates and rise upward, making for a lifted cookie. You get a dense, chewy cookie as a result.
How to Make Perfect Cookies
Melting butter eliminates the air pockets. Without any foamy support, the dough flatten rapidly. The finished product is flatter and denser than the other one. Edges may be crisp while the center tends toward fudginess. If you like crispy cookies, go this route.
With cold butter, however, you get something different. Butter doesn’t become runny until later in the oven. So when it does melt, steam pockets is left behind to puff up and form flaky layers instead of spreading out flat on a pan. That’s how shortbread achieves its sandy consistency. And cutout cookies requires cold butter for holding their shape.
Your goal: Know your texture before you do anything else. Cookies bake differently depending on the temperature. If it’s slower (three hundred degrees or so), the cookie will dry out slowly and be more crispy all over. If it’s higher, the outside will get set faster then the inside. That’s good if you want chewy chocolate chip cookies. Brownies and other bar cookies does better baked in lower temps. Because they are cooked longer, the outsides won’t burn. A few degrees can matters greatly.
The trick is to let it rest. Letting the fat firm and letting the flour take on some of that water solidify the structure. This prevents the cookie from spreading out too much. It also has enzymatic activity which heightens the flavor. A good, basic dough will be improved with fridge time. Oftentimes its worth the wait for the enhanced taste.
Keeps cookies fresh longer (Cookies are best stored at room temperature; crisp varieties should be kept away from humidity and soft cookies benefit from some moisture, which can be provided by a slice of bread in the container.) Proper storage will preserve desired texture. That’s how to keep the cookies tasting good days after they were baked.
There are no blind rules in baking; it’s all about cause and effect. Once you know what happens to fat, flour, and heat, you can tweak your recipes. Change the temperature of the oven or brown your butter for a richer taste. Don’t expect perfection; aim instead for consistency. When you bake, you have power over the science. If you master these factors, you’ll should of got better results each time.