1. Center a rack in oven and heat to 350 degrees. Grease an 8" square baking pan and line with parchment; set aside.
2. In a medium bowl, whisk cocoa powder, oat flour, baking soda, and salt; set aside. Process beans, honey, eggs, banana, peanut butter, vanilla, and vinegar in a food processor until well blended and smooth, about 2 minutes. Scrape down sides, then add dry ingredients and process until combined. Stir in chocolate morsels.
3. Scrape batter into prepared pan and smooth into an even layer, then sprinkle more chocolate morsels on top. Bake until a toothpick inserted into center comes out clean, 25 to 30 minutes.
4. Let cool completely in pan before cutting into squares and serving. Store brownies in an airtight container for up to 1 week or freeze up to 1 month.
Source: Hannaford fresh Magazine, January-February 2022