Black bean brownies

I have working on all my food items for the Taster's table for my next class, next Saturday (Wouldn't it be Rice to Know Beans?) and I decided to try this recipe once again.
I can see your heads shaking...seriously these are so good. My family was once again fooled by me. I don't dare tell them before they eat them what is in them.
Moist, gooey brownie, no need for frosting. The next time you are out of eggs or oil- all you need is a can of black beans (and some Chocolate chips, but who doesn't have those?)

1 box of brownie mix (I used dark Chocolate)
1 can of black beans- do not drain
6 oz choc. chips
6 oz peanut butter chips (optional)
Preheat oven to 350
Dump the can of beans in the blender and puree. In a mixing bowl, add the brownie mix and the bean puree. Stir well, until fully incorporated. Stir in the choc. chips and if you like nuts you can stir those in too.
Spray a 9x13" pan with spray oil and then dump the batter in the pan. Smooth the batter out and place in the oven and bake for 25-30 mins, until the brownies start to pull away from the edges and the top looks baked.
Wait until cool to cut.
No bean taste, no grit and so far no OTHER effects of the beans...if you get my drift.

There is a story about a family and some brownies with a little bit of bad stufff in them. The kids ask their dad if they can watch a movie that has "a little bit of bad stuff in it". He says sure and he will make some special brownies before they watch it. He makes up a batch of brownies for the kids. He tells them he put just a little bit of bad stuff (dog poop) in the brownies.
They obviously don't want to eat THOSE brownies and they did not see the movie.

This is a great object lesson for your preteens and teens. I am all about object lessons for kids. Hopefully something will sink in.