Today is National Chocolate Chip Cookie Day, in honor of the nation’s favorite cookie. No one can resist a warm gooey chocolate chip cookie with a glass of milk, no matter their age. So what is the key to making a good cookie? Well, we spoke to Jeffery Gisstennar, the owner of Good Cookies, to talk all about cookies.

When it comes to cookies, they’re all pretty good, but they were not all created equally.