Sweet potato butter cake

photo of sliced Sweet potato butter cake

I love butter cakes. They are simple and sweet. They taste great for breakfast or an afternoon snack.  I saw a recipe for a pumpkin butter cake on Table for 2…or more. The cake looked so delicious. I knew I had to try it.
photo of a loaf of Sweet potato butter cake on a red napkin
I don’t have any pumpkin so I decided to try making a version with some sweet potatoes. Specifically, I decided to use a Japanese sweet potato, called satsumaimo, which has yellow flesh and a purplish red skin. This type of sweet potato is more starchy than the common ones found in American grocery stores. They are also very sweet. I always find yams to be too runny and wet, so I prefer these Japanese ones because of the starchier texture.
photo of the cake in a pan close-up photo of a loaf of Sweet potato butter cake in a pan
The cake came out beautifully. The outside crust had an almost sugary crunch. The inside was soft, smooth, sweet and oh so delicious. This cake didn’t last long.photo of two slices of cake on a plate

I definitely will make it again and I’ll try the pumpkin version once when I get some pumpkin.
Sweet potato butter cake

Sweet Potato Butter Cake

Prep Time: 20 minutes
Cook Time: 40 minutes
Total Time: 1 hour
Course: Breakfast, Dessert
Cuisine: American
Servings: 1 (7x3) loaf
Butter cakes are easy to make and this version is made with sweet potato. Once baked it has a sugary crunch crust and is soft and sweet on the inside.


  • 100 g granulated sugar
  • 100 g unsalted butter
  • 1/2 tsp vanilla extract
  • 3 large eggs
  • 150 g cake flour
  • 1 tsp baking powder
  • 100 g steamed sweet potato
  • 3 tbsp milk


  1. Preheat oven to 350°F. Line a 7 x 3 inch loaf pan.
  2. Beat sugar, butter and vanilla until light and fluffy. Add in eggs, one at a time, beating well after each addition. In a separate bowl, mix flour and baking powder.
  3. In a food processor or blender, puree the steamed sweet potato and milk.
  4. Add in half of the flour mixture to the egg/butter mixture. Then add in the sweet potato puree and mix until combined. Put in remaining flour and beat until just combined. Pour batter into prepared pan.

  5. Bake for 45-50 minutes or until done when knife inserted comes out clean.


Recipe adapted from Table for 2 ... or More

All images and content are © Kirbie's Cravings.

4 comments on “Sweet potato butter cake”

  1. Oh that looks so good! I may have to go buy a sweet potato just to make this!

  2. Thank you for sharing, I just tried this and it is sooo good! My kids love it too. 🙂 Have you tried any variations on this recipe? What about the time for cupcakes? I’m a novice baker so have no idea.

    • Sorry, I have not yet experimented with any other variation for this cake yet. I think it might be too dense for cupcakes, but it might work as a large bundt cake.

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