~46 calories per piece | Moist, chocolatey, and naturally sweet

If you love chocolate cake or brownies but want a lighter, healthier option, this sweet potato cocoa cake is for you. There’s no butter, no oil, and no refined sugar. The secret is using mashed sweet potato, which adds natural sweetness and keeps the cake incredibly moist.

This recipe follows a simple formula you can reuse with pumpkin or banana, too. It’s easy, beginner-friendly, and perfect for a cozy, guilt-free dessert.

Why This Recipe Works

No butter or oil – sweet potato provides moisture
No refined sugar – lightly sweetened with honey
Low calorie (portion-controlled) – about 46 kcal per piece when cut into 15
Soft and chocolatey – somewhere between cake and brownies

Baking Pan

8 x 5 inch loaf pan (about 20 x 12 cm)

Ingredients (US Measurements)

¾ cup mashed sweet potato (about 180 g)
2 large eggs
1 large egg white
½ cup all-purpose flour (about 60 g)
¼ cup unsweetened cocoa powder (about 25 g)
2 tablespoons honey (about 30 g)
1 teaspoon baking powder
Optional topping: a small handful of chocolate chips

Instructions

Preheat the oven to 350°F (175°C). Line the loaf pan with parchment paper.
In a large bowl, add the mashed sweet potato, eggs, and egg white. Mix until smooth.
Add the flour, cocoa powder, honey, and baking powder. Mix until just combined. The batter should be thick but spreadable.
Pour the batter into the prepared pan and smooth the top. If using, sprinkle a small handful of chocolate chips over the surface.
Bake for 25 minutes, or until the top is set and a toothpick inserted comes out mostly clean.
Let cool slightly before slicing. Cut into 15 small pieces for low-calorie portions.

Texture Notes & Variations

With baking powder: the cake is softer, lighter, and slightly springy.
Without baking powder: the texture is denser and more brownie-like, with a gooey center.

Both versions are moist thanks to the sweet potato, and neither tastes dry even without oil.

Storage

Store in an airtight container in the refrigerator for up to 4 days.
Warm slightly before eating for a softer, fudgier texture.

Nutrition (Approximate)

Whole cake: ~687 kcal
Per piece (15 pieces): ~46 kcal

Oil-free • No refined sugar • Naturally sweetened

This sweet potato cocoa cake is proof that you don’t need butter or sugar to make a satisfying chocolate dessert. Simple ingredients, simple method, and a result you’ll want to make again and again.

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46 Calories Sweet Potato Cocoa Cake (Oil-Free, No Refined Sugar)