Ok this isn't a "real" recipe but it was surprisingly good so I'm passing it on.
1 box Peanut Butter cookie mix (I used Krusteaz)
1 cup chocolate chips (I used dark chocolate)
Prepare cookie mix as directed.
Press dough into lightly sprayed 2 qt baking dish (9x9 or 8x11, etc.)
Top with chocolate chips - press lightly into cookie dough.
Bake 350 degrees for 22-28 minutes.
So easy...so addictive. Only cost about $2 since the cookie mix was on sale.