As the air turns cooler and the leaves start to paint the trees in warm hues, there’s something magical about bringing seasonal flavors into the kitchen. Sweet potato is one of those ingredients that often takes a backseat to pumpkin during fall, but it’s just as versatile, and I’d argue, even more flavorful in certain dishes. My absolute favorite? A rich, moist sweet potato cake topped with a silky caramel frosting. This cake brings the cozy vibes of autumn to your table with every bite.
Why Sweet Potato?
Sweet potatoes have a natural sweetness and a soft, creamy texture that makes them perfect for baking. They add moisture to cakes, giving you that melt-in-your-mouth experience without needing to rely on a ton of butter or oil. Plus, they’re packed with vitamins and minerals, so I like to tell myself this cake has a little health boost in it too!
While pumpkin usually gets all the attention this time of year, sweet potato deserves its moment. And trust me, once you try this cake, you’ll understand why.
Ingredients for Sweet Potato Cake
This sweet potato cake is incredibly easy to make and uses ingredients you likely already have in your pantry. Here’s what you’ll need:
- Mashed sweet potatoes – Roasted or boiled, your choice, but roasted gives a deeper flavor.
- Brown sugar and granulated sugar – The perfect mix of molasses-rich sweetness and light sugar.
- Vegetable oil – Keeps the cake moist without overpowering the flavors.
- Eggs – For structure and richness.
- Flour, baking powder, baking soda, and salt – The usual suspects in cake baking.
- Cinnamon, nutmeg, and a touch of ginger – These warm spices complement the sweet potato perfectly.
- Vanilla extract – A little goes a long way in enhancing the natural sweetness.
For the Caramel Frosting
Now, let’s talk about this caramel frosting. It’s the crown jewel of this cake—a rich, buttery caramel that coats each slice with sweetness. You’ll need:
- Butter – For that creamy base.
- Brown sugar – To give the caramel its deep, molasses flavor.
- Heavy cream – To make the frosting rich and silky.
- Powdered sugar – To thicken it up to the perfect frosting consistency.
- Vanilla extract – A splash to bring all the flavors together.
Let’s Bake!
- Prepare your sweet potatoes: If you’re roasting them, wrap the sweet potatoes in foil and bake at 400°F for about an hour until soft. Let them cool slightly, then peel and mash until smooth. You’ll need about 1 ½ cups of mashed sweet potato.
- Make the cake batter: In a large bowl, whisk together the sugars and oil until combined. Add the eggs one at a time, mixing well after each addition. Stir in the mashed sweet potatoes and vanilla extract.
- Dry ingredients: In a separate bowl, whisk together the flour, baking powder, baking soda, salt, and spices. Gradually add the dry ingredients to the wet mixture, stirring just until combined.
- Bake: Pour the batter into a greased 9×13-inch pan and bake at 350°F for 35-40 minutes, or until a toothpick inserted into the center comes out clean. Let the cake cool completely before frosting.
Time for the Caramel Frosting!
- Make the caramel base: In a saucepan, melt the butter over medium heat, then stir in the brown sugar and heavy cream. Bring the mixture to a gentle boil and let it simmer for 2-3 minutes, stirring constantly. Remove from heat and let it cool slightly.
- Frosting time: Once the caramel has cooled, whisk in the powdered sugar and vanilla extract until smooth. The frosting will thicken as it cools. If it gets too thick, add a little more cream to loosen it up.
- Frost the cake: Spread that glorious caramel frosting over the cooled sweet potato cake. The cake will absorb some of the caramel, making each bite even more irresistible.
A Slice of Fall Perfection
This sweet potato cake with caramel frosting is everything you want in a fall dessert—moist, spiced, and topped with a frosting that’s good enough to eat by the spoonful. Each bite is like a little celebration of the season, bringing warmth and sweetness to your table.
Whether you’re serving it for a holiday gathering or just treating yourself on a chilly evening, this cake is sure to impress. Plus, it’s a great way to showcase sweet potatoes in a dessert that’s a little different from the usual pies and casseroles.
Sweet Potato Cake with Caramel Frosting
Ingredients
For the Sweet Potato Puree:
- 2 medium sweet potatoes peeled and diced
- 2 tbsp unsalted butter
- 1/4 cup brown sugar
- 1 tsp ground cinnamon
- 1/4 tsp ground nutmeg
- 1/4 tsp ground ginger
- 1/4 tsp salt
For the Cake:
- 1 ¾ cups all-purpose flour
- 1 tsp baking soda
- ½ tsp baking powder
- 1 tsp ground cinnamon
- ½ tsp ground nutmeg
- ¼ tsp ground cloves
- ¼ tsp ground ginger
- ½ tsp salt
- 1 cup sweet potato puree
- ½ cup granulated sugar
- ½ cup brown sugar
- 2 large eggs
- ½ cup vegetable oil
- ¼ cup whole milk
- 1 tsp vanilla extract
For the Caramel Frosting:
- 2 cups powdered sugar
- 1/2 cup salted butter softened
- 2 tbsp heavy cream
- 2 tbsp caramel sauce
- 1 tsp vanilla extract
- 1 tsp salt
Instructions
- Place the 2 medium sweet potatoes in a large pot and cover with water. Add a pinch of salt. Bring the water to a boil over high heat, then reduce the heat to medium and simmer for about 15-20 minutes, or until the sweet potatoes are fork-tender. Drain the sweet potatoes and let them cool slightly.2 medium sweet potatoes
- Transfer the boiled sweet potatoes to a food processor and blend until smooth.
- In a pot, melt the 2 tbsp unsalted butter over medium heat. Add the pureed sweet potatoes to the pan, along with the 1/4 cup brown sugar, 1 tsp ground cinnamon, 1/4 tsp ground nutmeg, 1/4 tsp ground ginger, and 1/4 tsp salt. Stir to combine and cook the mixture on low for about 30 minutes, stirring occasionally, until the mixture has thickened. Set aside.2 tbsp unsalted butter, 1/4 cup brown sugar, 1 tsp ground cinnamon, 1/4 tsp ground nutmeg, 1/4 tsp ground ginger, ¼ tsp ground cloves, 1/4 tsp salt
- Preheat the oven to 350°F. Grease a 9×9 inch pan and line it with parchment paper for easier removal.
- In a medium bowl, whisk together the 1 ¾ cups all-purpose flour, 1 tsp baking soda, ½ tsp baking powder, 1 tsp ground cinnamon, ½ tsp ground nutmeg, ¼ tsp ground cloves, ¼ tsp ground ginger, and ½ tsp salt.1 ¾ cups all-purpose flour, 1 tsp baking soda, ½ tsp baking powder, 1 tsp ground cinnamon, ½ tsp ground nutmeg, ¼ tsp ground cloves, ¼ tsp ground ginger, ½ tsp salt
- In a separate large bowl, whisk the 1 cup sweet potato puree, ½ cup granulated sugar, ½ cup brown sugar, 2 large eggs, ½ cup vegetable oil, ¼ cup whole milk, and 1 tsp vanilla extract until well combined.1 cup sweet potato puree, ½ cup granulated sugar, ½ cup brown sugar, 2 large eggs, ½ cup vegetable oil, ¼ cup whole milk, 1 tsp vanilla extract
- Gradually add the dry ingredients into the wet mixture, stirring just until combined. Be careful not to overmix.
- Pour the batter into the prepared pan and smooth the top.
- Bake for 35-45 minutes, or until a toothpick inserted into the center comes out clean.
- Let the cake cool in the pan for 10 minutes before transferring it to a wire rack to cool completely.
- In a large mixing bowl, use an electric mixer to beat the softened 1/2 cup salted butter on medium speed for about 2 minutes, until it’s creamy and smooth.1/2 cup salted butter
- Gradually add the sifted 2 cups powdered sugar, about 1 cup at a time, beating on low speed after each addition. Once all the sugar is incorporated, increase the speed to medium and beat for another minute.2 cups powdered sugar, 2 tbsp heavy cream, 2 tbsp caramel sauce, 1 tsp vanilla extract, 1 tsp salt
- Add the 1 tsp vanilla extract, 2 tbsp heavy cream, 2 tbsp caramel sauce, and 1 tsp salt. Beat on medium-high speed for 2-3 minutes, until the frosting is light and fluffy.
- Spread the frosting over the cooled pumpkin bread.
