Peanut Butter Cup Cookie Bars

From Sundy:

Here's a super-easy cookie recipe that I doctored up a bit. The basic recipe is 1 box cake mix, 1/2 cup oil, and 2 eggs. Then you add whatever you like into the mix before baking.

1 box of cake mix
1/2 c. oil
2 eggs
1/3 to 1/2 cup of peanut butter
1 c. chocolate chips

Stir all ingredients together in a large bowl. Spread the mixture in a cookie sheet pan and bake at 350 degrees for 15-20 minutes. Let cool and slice into bars or squares. I usually cut the whole panful into small cookie-sized squares and then pop them all in a zip-top bag. Refrigerate for maximum peanut-butter-cup-ness!