Everyone I knew growing up always used the cookie recipe off the back of the chocolate chips.
Its so long that I do not know what my mother used. I know that she did use product recipes all the time though. We have a number of her recipes in a card box so I guess that makes them family recipes.
Cookies? Myself? I like oatmeal raisin cookies, with or without walnuts. (And of course Carrot Cake with cream cheese frosting because its “healthy”!)