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90 Calorie Pumpkin Brownies

90 calorie pumpkin brownies made with a boxed dark brownie mix plus pumpkin puree for a fudgy, dense crumb. Bake until a toothpick comes out clean, then cool fully for clean 16-bar slices dusted with powdered sugar.
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Prep Time 10 minutes
Cook Time 25 minutes
Total Time 35 minutes
Servings: 16 servings
Course: Dessert
Cuisine: American
Calories: 90
Ingredients Equipment Method Notes

Ingredients
  

Brownie mix base
  • 1 box (18 oz) dark chocolate or fudge brownie mix Use the dry mix from the box.
  • 1 can (15 oz) pumpkin puree No eggs or oil are needed—pumpkin replaces them.
  • 0.5 tsp pumpkin pie spice For classic fall flavor.
  • 0.5 tsp cinnamon Adds warmth and depth.
Optional add-in and finishing
  • 0.25 cup dark chocolate chips Optional; fold in after mixing.
  • powdered sugar for dusting Dust after the brownies cool completely.

Equipment

  • 1 sheet pan

Method
 

Prep and preheat
  1. Preheat the oven to 350F and grease a 9x13 baking pan so the dense batter releases cleanly.
Mix the brownie batter
  1. Combine the dark chocolate or fudge brownie mix, pumpkin puree, pumpkin pie spice, and cinnamon in a mixing bowl and stir until completely smooth.
  2. Fold in the dark chocolate chips if using, mixing just until evenly distributed.
  3. Spread the batter evenly in the prepared pan using a spatula, since the batter will be very thick.
Bake and cool
  1. Bake for 23-26 minutes at 350F until a toothpick comes out clean, indicating the center is set.
  2. Cool completely before cutting to prevent crumbling and to help the bars slice neatly.
  3. Dust the cooled brownies with powdered sugar, then cut into 16 bars.
Portioning note
  1. Portion into 16 bars and expect each bar to be approximately 90-100 calories depending on the brownie mix used.

Notes

Pro tip: cool fully before cutting—this dense, thick batter sets up better and yields cleaner bar edges. Store airtight in the fridge up to 4 days; freeze up to 2 months (wrap individual bars for best texture). For a dietary swap, choose a brownie mix labeled dairy-free/egg-free if you need to keep it vegan—since eggs/oil aren’t added, the only variable is the mix ingredients.