Vegan Chocolate Sweet Potato Brownies

My kids have a standing rule that I have to make these at least once a month, which is how I know the recipe actually works.

The sweet potato does two things at once: it binds the batter and keeps the center dense without any butter or eggs, so these hold together cleanly when you cut them.

Vegan Chocolate Sweet Potato Brownies

Fudgy, dairy-free brownies that use roasted sweet potato to replace eggs and oil without tasting like a compromise.

4.8 (116 reviews)
VeganDairy-freeEgg-free
Prep20 min
Cook30 min
cooling time15 min
Total1 hr 5 min
Serves16 brownies

Ingredients

Instructions

1
Preheat your oven to 350 degrees F and line an 8x8 inch baking pan with parchment paper, leaving an overhang on two sides so you can lift the brownies out cleanly.
2
If your sweet potato is not already pureed, halve it, roast it cut-side down at 400 degrees F for 35 to 40 minutes until the flesh is completely soft and the skin pulls away easily, then scoop and mash until totally smooth. It should smell like caramel and fall apart under a fork with no resistance.
3
In a large bowl, whisk together the sweet potato puree, coconut sugar, maple syrup, melted coconut oil, and vanilla. The mixture will look glossy and dark golden, and should smell faintly of brown sugar.
4
Sift the cocoa powder directly into the bowl. The air that comes off the cocoa smells intensely of dark chocolate, which is your first signal that the flavor is going to be real. Whisk until no dry streaks remain.
5
Add the almond flour, oat flour, baking powder, and salt. Switch to a rubber spatula and fold just until the batter is uniform. It will be very thick, almost like a stiff frosting, and it will pull away from the bowl sides in one mass.
6
Fold in 1/2 cup of the chocolate chips, then scrape the batter into the prepared pan. It will not spread on its own. Use the spatula to press it into an even layer all the way to the corners, then scatter the remaining 2 tablespoons of chocolate chips over the top.
7
Bake for 28 to 32 minutes. At 28 minutes, the edges will look set and matte, and the center will have a very slight dome that has just started to flatten. A toothpick inserted 1 inch from the edge should come out with a few moist crumbs, not wet batter.
8
Let the brownies cool in the pan for 15 minutes before lifting out by the parchment and transferring to a cutting board. If you cut them before the 15 minutes are up, the center will smear. Cut into 16 squares with a sharp knife wiped clean between cuts.

Tips & Notes

  • The sweet potato must be fully cooled before it goes into the batter. Warm puree will melt the coconut oil and make the batter greasy and loose.
  • Dutch-process cocoa gives a deeper, less acidic chocolate flavor here. Natural cocoa works but the brownies will taste slightly sharper.
  • For cleaner slices, refrigerate the cut brownies for 20 minutes before serving. The center firms up without drying out.
  • These are intentionally dense. If yours come out cakey, the sweet potato had too much moisture. Drain excess liquid from the puree through a fine mesh strainer for 10 minutes before using.
Storage: Store in an airtight container at room temperature for up to 3 days, or refrigerate for up to 6 days. The texture improves on day two as the center sets further. Freeze individually wrapped squares for up to 2 months.

Nutrition per serving · estimated

148 Cal
8g Fat
19g Carbs
2g Protein
2g Fiber
11g Sugar
62mg Sodium

Why Sweet Potato Works Better Than Flax Here

Flax eggs add binding but zero richness. Sweet potato adds binding and a dense, fudgy texture that holds moisture for days, which is the actual reason these brownies do not dry out by the next morning.

The starch in the sweet potato also keeps the structure tight without making the brownies gummy, which is the failure mode for a lot of vegan brownie recipes that use banana or applesauce.

Getting the Puree Right

Roasting is not optional here. Steamed or microwaved sweet potato has too much water and not enough concentrated sweetness, and you will taste the difference in the finished brownie.

You want the potato roasted until the cut surface has a little caramelization and the flesh is completely dry and jammy. That extra 5 minutes in the oven is doing real work.

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