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4.87 from 15 votes

The Best Sweet Potato Protein Brownies

These fudgy brownies taste so amazing, you won't believe there's no butter, no sugar, no white flour, and no chocolate... or that they're high in protein, with only 139 calories. Recipe from Tom Venuto's Burn the Fat, Feed the Muscle Blog (www.BurnTheFatBlog.com)
Prep Time18 mins
Cook Time23 mins
Course: Dessert, Snack
Cuisine: American
Keyword: brownies, fudgy, low-calorie, protein powder, sweet potato
Servings: 12
Calories: 139kcal


  • 184 g Sweet potato puree (3/4 cup)
  • 192 g Natural smooth peanut butter (3/4 cup)
  • 1/2 cup Sugar-free maple syrup
  • 2 large Whole eggs
  • 1 tsp Vanilla extract
  • 22.5 g Oat flour (1/4 cup)
  • 46.5 g Chocolate whey protein (1/2 cup)
  • 20 g Unsweetened cocoa powder (4 Tbsp)
  • 4 Tbsp Truvia Naturally Sweet
  • 1/4 tsp salt


  • Pre-heat oven to 325.
  • Prepare an 8 X 8 baking pan, coat bottom with nonstick cooking spray.
  • Measure the peanut butter in mixing bowl (on scale preferably). If not room temp and easily mixable, heat in microwave for 30 seconds.
  • Add sweet potato, eggs, maple syrup and vanilla extract to bowl. Stir with rubber/silicone spatula to combine until smooth.
  • In separate mixing bowl, stir together protein powder, cocoa powder, oat flour, salt, and sweetener.
  • Pour dry ingredients into wet and mix thoroughly into thick batter.
  • Pour batter evenly into baking pan.
  • Bake at 325 in the center rack for 23-25 minutes.
  • Check early for doneness. It's done when the edges start to look drier and lighter in color, and a toothpick inserted in the center comes out mostly clean (not covered with thick wet batter).
  • Allow to cool at room temperature for 1-2 hours first before cutting.


Serving: 1brownie | Calories: 139kcal | Carbohydrates: 9.2g | Protein: 8.1g | Fat: 9.3g