Factors such as baking time, moisture content, and fat content can affect if cookies are chewy or crispy. Cookies higher in fat tend to be chewy, whereas cookies that are lower in fat tend to be crispy. When it comes to moisture, cookies that are higher in moisture from ingredients like brown sugar, molasses, or honey tend to be chewy while cookies that are lower in moisture tend to be crispy. Finally, baking cookies at a higher temperature creates chewier cookies and baking at lower temperatures results in crispy cookies.