Gluten Free Vegan Brownie Recipe

I have been working on these trying to perfect them.  I will update this with any improvements and I am always open to your suggestions! If you are trying to lose weight and you don't exercise at least an hour a day I don't recommend these.
In a food processor:
1 can of drained and rinsed low salt black beans
1/2 cup of maple syrup
1/3 cup cocoa powder
1 small ripe avocado or 1/2 cup peanut butter
1 tsp. aluminum free baking powder
Blend until smooth. Be patient.
Add water 1 Tbsp. at a time if the mixture becomes to thick.
Stir in nuts if you like them
Bake 350 for 30 minutes.
Let cool and if you can wait put them in the fridge overnight. They are fudgier the next day.