How can I make a giant chocolate chip cooke?

that's so nice of you :) it's really easy to do this. just make your favorite chocolate chip cookie recipe and put it in a big cookie pan (they are called giant cookie sheet). if you don't have one in your house you could of course buy one or ask a relative if they have one. if no one has one, a VERY shallow cake pan will probably be just fine (if all your cake pans are more than a half inch high, just put the cookie dough on a regular cookie sheet but make it much bigger) just put the batter in the sheet (or pan) and cook it for a few minutes more than the recipe says. if the cookie does not seem done enough put it in for another 2 minutes until it seems good. just don't let it burn! an undercooked cookie is much better than a burnt one (undercooked is soft) this should get you a big cookie :)