First, drain and rinse the beans. Place beans back into the can and fill with water.
Puree the beans and water together.
1 15.5 oz can of Black Beans, water
Add the bean puree and brownie mix to a large bowl.
1 18 oz Brownie Box mix
Mix well with a spatula until combined.
Spray your brownie pan with nonstick spray and pour in the batter. I used an 11×7 glass pyrex.
Top with festive sprinkles, if you like.
sprinkles
Bake for 30 minutes. Remove from oven and let cool in pan.
Cut into 16 squares.
Enjoy!
Notes
If you use sodium-free beans there's no need to drain! Just blend with canned juices.
You may need to adjust cooking times based on your side pan. I found 30 minutes to be perfect. A toothpick stuck in came out clear and the top was firm to the touch. If you bake longer they will start to dry out and become more cake-like. I went for gooey.