In a medium mixing bowl, prepared the brownie mix. Set aside.
In a second medium mixing bowl, combine the eggs, butter, vanilla extract, white sugar and brown sugar.
Mix in the flour, salt and baking soda.
Add in the chips and mix well.
Add the cookie batter to a well greased crock-pot casserole dish. Smooth out the mix to form a bottom layer.
Next pour the brownie mix over the top of the cookie batter. Smooth out to form a second layer.
Cover and Cook on HIGH for 2 hours or until the middle has set.
Serve and Enjoy.