Let baking sheets cool completely between cookie batches. To expedite cooling, rinse the warm sheets under cold water.

Fat determines texture. Saturated fats produce tender baked goods, while unsaturated fats produce a chewier texture.

For mess-free measuring, spray measuring cups with vegetable oil spray before using them to measure a sticky ingredient.

Cookies baked on a rimless pan brown faster and can finish baking several minutes before those on a rimmed pan.