Low Glycemic Black Bean Brownies

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This recipe applies a lot of the tips on balancing blood sugar we provided in our previous editorial this month. Today we’re here to show you that a healthy, low-glycemic diet can satisfy your sweet tooth without spiking your blood sugar or sending you into a calorie-heavy food coma. In this brownie recipe, we are replacing flour with black beans and sugar with a monk fruit/xylitol blend, but leaving the eggs, oil, chocolate, and all the fudgy decadence right where it belongs. 

Black beans are the perfect ingredient to add structure for dessert, as they have a glucose index (GI) value of 30 (very low) versus white flour which has a very high GI value of about 73 [1]. They are full of complex carbohydrates for the cakey texture we need, but they’re also full of fiber and protein, which slow their digestion and reduce their GI. Although your iron status is not directly related to our theme of blood glucose, black beans are also an awesome source of iron. 

While most chocolate treats are loaded with sugar, unsweetened cocoa powder alone is very low glycemic (GI value 24) [1]. We are going to add some semi-sweet chocolate chips to this recipe, so these brownies are not 100% sugar-free, but that small amount of added sugar is balanced by a lot of protein and some healthy fat. Feel free to leave the chips out if you’re avoiding sugar completely.


1 can organic black beans 

3 eggs

⅓ cup coconut oil

1 tsp vanilla

½ cup unsweetened cocoa powder

½ cup monk fruit sweetener (1:1 sugar substitute)

½ tsp baking powder

¼ tsp salt

½ tsp powdered instant coffee (optional)

½ cup semi-sweet chocolate chips


Preheat the oven to 350°F and grease your baking dish of choice. We used a 7 x 11 inch pyrex, but a 9 x 9 inch would work just as well. 8 x 8 inches would make thicker brownies and may take a little longer to bake.

Open your can of black beans and drain and rinse them well in a colander shaking them well to dry. Your beans are replacing the flour in this recipe, so removing as much liquid as possible is important. Pulse the beans in a food processor until they qualify as a thick puree (try not to liquefy them completely). 

Add vanilla, your scoop of coconut oil, and all three eggs into the puree. Pulse the wet ingredients together until they are evenly incorporated.   

In a small bowl, stir together the cocoa powder, sugar substitute, salt, baking powder, and instant coffee powder (again, optional, but encouraged). Pour these dry ingredients into the food processor with the wet ingredients and pulse again until just incorporated. Note: if you choose to skip the second bowl and add each of the dry ingredients individually, you risk uneven baking powder incorporation and an uneven rise.

Pour the complete mixture from the food processor into your greased baking dish and top with the chocolate chips. 

Bake for 35 minutes. If the brownies are done, a clean knife will still look clean after poking into the center of the dish. If the knife doesn’t come out clean, give them a few more minutes and check again.

Let the brownies cool completely before slicing and serving (they will not hold their shape otherwise). Of course, if you want to eat them hot, with a spoon, directly from the pan, that’s cool too. Your secret is safe with us.


  1. The University of Sydney. “Search for Glycemic Index.” The University of Sydney. Accessed February 12, 2021. http://www.glycemicindex.com/foodSearch.php