Chocolate Squares


A surprising and decadent recipe: Chocolate Squares made with black beans. A nutritious and protein version of traditional brownies!


  • Servings: 16
  • Preparation time: 20 minutes
  • Cooking time: 25 minutes
  • Cost per serving: 32¢
  • Storage: 5 days in the fridge. Can be frozen.
  • Kitchen tools: Can opener, colander, measuring cups and spoons, 8-inch square baking dish, parchment paper (or oil), plate, fork (or a potato masher), large bowl, whisk, spatula.
  • Reference: This original recipe was developed by Extenso—the Université de Montréal reference centre on human nutrition.
Fondation OLO | Recette | Carrés au chocolat


  • 1 can (540 ml) black beans, drained and rinsed
  • 125 ml (½ cup) brown sugar
  • 125 ml (½ cup) softened butter or non-hydrogenated margarine
  • 3 eggs
  • 125 ml (½ cup) all-purpose flour
  • 60 ml (¼ cup) cocoa powder (divided: 30 ml [2 tbsp] + 30 ml [2 tbsp])
  • 5 ml (1 tsp) baking powder
  • 125 ml (½ cup) semi-sweet chocolate chips


1. Place oven rack in the middle position and preheat the oven to 180°C (350°F). Oil an 8-inch square baking dish or line with parchment paper.

2. Mash the black beans on a plate using a fork or a potato masher until the texture is relatively smooth. Set aside.

3. In a large bowl, add the brown sugar, butter and eggs. Mix with a whisk (or a fork) for 4 to 5 minutes, or until the mixture is thick and creamy.

4. Add the flour, 30 ml (2 tbsp) of cocoa powder and baking powder. Mix.

5. Add the mashed black beans and the chocolate chips. Stir just enough to incorporate the chocolate chips and the beans.

6. Pour the mixture into the baking dish and bake for about 25 minutes, or until a toothpick inserted in the centre comes out clean.

7. Sprinkle the remaining cocoa powder on the chocolate squares while they are still hot. Let cool before cutting into pieces and serving.

Variation: If you cut the squares when they are still hot, the texture will be chewier.

Nutritional balance

This recipe provides foods from the following food groups:

  • Grain products
  • Meat and alternatives

Delicious with a glass of milk or fortified soy beverage.