Chocolate Chip Cookies

Heather - this one's for you!
In the midst of trying to get ready for vacation, I was asked by our church to do a cookie delivery. We deliver cookies to families who have been visiting our church on a regular basis, but are not yet members. We don't pressure them with questions, or anything of that sort, we just want to say, "thanks for coming!"
This recipe that I've found is working out really well. Depending on how many cookies we snack on, I can make enough cookies in one batch to fill three Gladware containers. They freeze really well in the containers, so the next time that I have to do a delivery, I just pull one of the containers out of the freezer and I'm set!
(Unfortunately, I didn't snap a picture before putting them all away, but hey, they're chocolate chip cookies, you know what they're supposed to look like!)
Here's the recipe:
1 cup sugar
1 cup brown sugar
2 sticks margarine, softened
3/4 cup oil
1 egg
1 T milk
1 tsp vanilla
3.5-4 cups flour
1 tsp cream of tartar
1 tsp baking soda
12 oz chocolate chips (1 bag)
Cream together sugars and margarine. Add oil, egg, milk, vanilla, flour, cream of tartar, baking soda and chocolate chips.
bake at 350 degrees for 12 minutes