Cookie trouble

Problem: My cookies always come out hard and tough, never seem to bake evenly, or are always too brown on the bottom.

Solution: To prevent cookies from becoming hard and tough, avoid adding more flour than necessary to the cookie dough or batter. Also, avoid overmixing once the flour is added. For even baking, be sure to shape cookies to roughly the same thickness. If you have a problem with your cookies being too brown on the bottom, avoid dark-colored cookie sheets. Instead, use heavy-gauge metal cookie sheets with a dull finish (aluminum is ideal).