Sweet Potato Brownies – Fudgy Brownie Recipe With Mashed Sweet Potatoes

You can trust mashed sweet potatoes to do something that cocoa alone cannot. They bring a quiet moisture to brownies that doesn’t shout for attention, but settles deep in the crumb, staying soft for days. I have always kept a space in my recipe notebook for the brownies that lean into comfort, and this one earned its spot after the third test batch disappeared before morning.

This sweet potato brownie recipe uses no refined flour, no butter, and still yields the kind of fudgy texture that holds together without falling flat. It began, like many things, with leftover mashed sweet potatoes from dinner. Stuffed sweet potato healthy fillings were tucked away, and I thought, why not try baking something sweet with what remained?

I used to bake these alongside a tray of Sweet Potato Muffins when Chloe was younger. She liked the soft middle and the hint of maple syrup. I still keep the card labeled “Yummy Sweet Potatoes Brownies” in her handwriting.

Using Mashed Sweet Potatoes in Brownies

Roasted sweet potatoes bring out a rich caramel edge that boiled ones simply don’t offer. For this recipe, I roast them whole, skins on, until they sag into themselves. Then I scoop the flesh into a bowl and mash it until smooth. Mashed sweet potatoes replace much of the fat and liquid in traditional brownie recipes.

I use maple syrup and olive oil for a softer finish. The olive oil gives richness without making the batter heavy. Some sweet potato brownie recipes call for coconut oil or butter, but I find olive oil more dependable for structure.

A Fudgy Brownie with No Flour or Butter

Almond flour creates a sturdy but tender base. I’ve tried oat flour as well, and it works if that’s what you have. The cocoa powder and melted dark chocolate carry the flavor, while the sweet potato lends body.

If you’re debating between almond or oat flour, here’s what I’ve learned. Oat flour makes the crumb slightly lighter and softer. Almond flour gives a firmer chew and a bit more moisture. Both work, but I tend to reach for almond when I want cleaner slices. In my notes, I marked oat as better for weekday snacks and almond for holiday trays.

I recently paired these with a batch of Sweet Potato Pancakes on a chilly afternoon, and the aroma alone felt like a blanket.

Mixing and Baking the Brownies

The batter comes together in one bowl. I whisk the sweet potato, eggs, olive oil, maple syrup, and vanilla until it looks smooth and glossy. Then I add the dry ingredients. The cocoa will thicken the mix quickly, so stir gently.

Scrape the batter into a parchment-lined pan. It will feel thick. Press it into the corners and smooth the top. The oven does the rest.

At 350 degrees, they bake in under 35 minutes. You want a toothpick to come out with a few moist crumbs. Let them cool in the pan before slicing. If they look cracked on top, that’s fine. If they feel soft, that’s better. If they fall apart slightly when cut warm, don’t worry.

Finishing Touches and Storage Advice

I like to scatter a bit of flaky salt on top just after they come out of the oven. It balances the sweetness and brings out the cocoa. Some skip this step, but I’ve written “salt it warm” on my recipe card.

Once cooled, they hold their shape better. You can keep them at room temperature for a few days or store them in the fridge for longer. They make a nice finish to a fall lunch or a late snack with tea.

I recently baked them the same day I made a tray of Apple Brownies, and I noticed how the sweet potato version stays softer the next day.

Bake with What You Have

Use almond flour or oat flour. Use dark chocolate chips or a bar. Maple syrup, honey, or brown sugar all bring a different kind of sweetness. I wrote this recipe to work with what you might have on hand after roasting vegetables for dinner.

As with most things, if it cracks, don’t worry. Let it cool, cut gently, and serve without fuss.

Chloe once told me these reminded her of her favorite Sweet Potato Waffles, and I think of that each time I bake them.

Share Your Baking Notes

If you try these sweet potato brownies, I hope you’ll leave a comment below. I read them slowly, like letters. Save this recipe to your Pinterest board so you can find it when the leaves begin to turn. And if you ever swap in oat flour or try a new spice, tell me. My recipe notebook always has room for one more note.

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Yield: 9 brownies

Sweet Potato Brownies Recipe

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Sweet potato brownies are rich, fudgy brownies made healthier with mashed sweet potatoes mixed into the batter. I love how this sweet potato brownie recipe keeps the chocolate flavor strong while adding natural sweetness and moisture. Some sweet potatoe brownie recipes lean more toward healthy dessert versions, while others stay closer to classic brownie recipes, but they all taste indulgent. I’ve baked them as a fall dessert alongside yummy sweet potatoes and even used leftover stuffed sweet potato healthy fillings as a base. Among healthy dessert ideas, sweet potato brownies stand out for being simple, fudgy, and the kind of treat that works for both weeknights and holiday baking.

Prep Time 15 minutes

Cook Time 30 minutes

Total Time 45 minutes

Ingredients

• 1 cup mashed roasted sweet potato
• 2 large eggs
• 1/3 cup olive oil
• 1/2 cup maple syrup
• 1 teaspoon vanilla extract
• 1/3 cup almond flour
• 1/2 cup unsweetened cocoa powder
• 1/4 cup melted dark chocolate
• 1/2 teaspoon baking powder
• Flaky salt, for topping

Instructions

1. PREHEAT THE OVEN: Set your oven to 350°F and line an 8x8-inch square baking pan with parchment paper, leaving some overhang on the sides for easy removal.
2. MIX THE WET INGREDIENTS: In a medium bowl, whisk together the mashed sweet potato, eggs, olive oil, maple syrup, and vanilla extract until the mixture is smooth and glossy.
3. ADD THE DRY INGREDIENTS: Add the almond flour, cocoa powder, melted dark chocolate, and baking powder to the bowl. Stir until everything is fully combined into a thick batter.
4. SPREAD THE BATTER: Pour the batter into the prepared pan. Use a spatula to spread it evenly, making sure to reach all corners and smooth the surface.
5. BAKE THE BROWNIES: Place the pan in the oven and bake for 28 to 32 minutes. The brownies will puff up slightly and form a cracked surface. A toothpick inserted into the center should come out mostly clean with a few moist crumbs.
6. ADD SALT AND COOL: Remove the pan from the oven and sprinkle the top with flaky salt while still warm. Let the brownies cool completely in the pan before slicing, as they firm up as they cool.

Notes

Use roasted—not boiled—sweet potatoes for better flavor and texture. Almond flour can be substituted with oat flour in equal measure. Store leftovers in an airtight container at room temperature for up to 3 days, or refrigerate for longer shelf life.

Nutrition Information:

Yield:

9

Serving Size:

1
Amount Per Serving: Calories: 231Total Fat: 13gSaturated Fat: 3gTrans Fat: 0gUnsaturated Fat: 10gCholesterol: 42mgSodium: 119mgCarbohydrates: 24gFiber: 3gSugar: 16gProtein: 4g