Black Bean Brownies (GF) - FINITE FOODIE

Ingredients

• 1/4 cup butter ((4 tablespoons))
• 1/2 cup unsweetened cocoa powder (or cacao powder)
• 3/4 cup brown sugar ((firmly packed))
• 1 tablespoon molasses
• 1 teaspoon vinegar ((balsamic recommended))
• 1 teaspoon vanilla
• 1 (15-ounce) can refried black beans (plain (no spices))
• 2 eggs
• 1/2 teaspoon baking powder
• 1/2 teaspoon baking soda
• 1/2 cup dark chocolate chips
• 1/2 cup chopped nuts ((optional))