Name: Sweet Potato Honeybun Cake – Moist Swirled Cinnamon Cake with Sweet Glaze
Ingredients: 1 box yellow cake mix; 1 cup mashed sweet potatoes (smooth and cooled); 4 large eggs; ¾ cup vegetable oil; 1 cup sour cream; 1 tsp vanilla extract; 1 tsp cinnamon (optional for extra warmth); 1 cup brown sugar; 1 tbsp cinnamon; ½ tsp nutmeg (optional); 2 cups powdered sugar; ¼ cup milk; 1 tsp vanilla extract; 1 tbsp melted butter (optional for richness)

Ingredients

Scale

Cake Batter:

1 box yellow cake mix
1 cup mashed sweet potatoes (smooth and cooled)
4 large eggs
¾ cup vegetable oil
1 cup sour cream
1 tsp vanilla extract
1 tsp cinnamon (optional for extra warmth)

Cinnamon-Sugar Swirl:

1 cup brown sugar
1 tbsp cinnamon
½ tsp nutmeg (optional)

Honeybun Glaze:

2 cups powdered sugar
¼ cup milk
1 tsp vanilla extract
1 tbsp melted butter (optional for richness)

Instructions

Step 1: Prepare the Sweet Potato Mash

Boil or bake sweet potatoes until soft, then mash until completely smooth. Allow to cool before adding to the batter. Smoothness is key to keeping the crumb tender.

Step 2: Make the Cake Batter

In a large mixing bowl, combine cake mix, mashed sweet potatoes, eggs, oil, sour cream, vanilla, and cinnamon. Mix until the batter is thick, silky, and well combined. Do not overmix.

Step 3: Prepare the Cinnamon-Sugar Filling

Stir together brown sugar, cinnamon, and nutmeg in a small bowl. This mixture will create the signature honeybun-style swirl inside the cake.

Step 4: Assemble the Cake

Pour half the cake batter into a greased 9×13 baking dish. Sprinkle the cinnamon-sugar mixture over the batter evenly. Spoon the remaining batter on top and spread gently to cover the swirl.

Step 5: Bake the Cake

Bake at 350°F (175°C) for 35–40 minutes, or until a toothpick inserted into the center comes out clean. Do not overbake—this cake is best when moist.

Notes

For the best swirl effect, avoid mixing the cinnamon layer into the batter. Simply layer it in the center and let it bake into beautiful ribbons naturally.