Description
Rich, moist, and filled with cozy spices, Grandma’s Famous Sweet Potato Butter Cake is the ultimate comfort dessert. With buttery texture, warm cinnamon and nutmeg notes, and tender sweet potatoes, this Southern classic is perfect for holidays and special occasions!
Ingredients
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2 cups mashed sweet potatoes (about 2 large sweet potatoes, cooked and peeled)
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1 cup unsalted butter, softened
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1 1/2 cups granulated sugar
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1/2 cup brown sugar, packed
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4 large eggs
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1/2 cup sour cream
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2 tsp vanilla extract
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2 cups all-purpose flour
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2 tsp baking powder
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1/2 tsp baking soda
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1/2 tsp salt
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1 tsp ground cinnamon
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1/2 tsp ground nutmeg
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1/4 cup milk
Instructions
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Preheat Oven:
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Preheat your oven to 350°F (175°C). Grease and flour a 9-inch round cake pan.
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Cream Butter and Sugars:
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In a large mixing bowl, cream together the softened butter, granulated sugar, and brown sugar until light and fluffy.
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Add Wet Ingredients:
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Beat in the eggs one at a time, mixing well after each addition.
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Add the vanilla extract and sour cream, and mix until combined.
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Add Sweet Potatoes:
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Fold the mashed sweet potatoes into the batter until fully incorporated.
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Mix Dry Ingredients:
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In a separate bowl, whisk together the flour, baking powder, baking soda, salt, cinnamon, and nutmeg.
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Combine Wet and Dry Ingredients:
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Gradually add the dry ingredients to the wet mixture, alternating with the milk.
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Mix just until combined — do not overmix.
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Bake:
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Pour the batter into the prepared cake pan and spread evenly.
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Bake for 45–55 minutes, or until a toothpick inserted in the center comes out clean.
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Cool and Serve:
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Let the cake cool in the pan for 10–15 minutes before transferring to a wire rack to cool completely.
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Dust with powdered sugar or drizzle with a glaze if desired before serving.
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Notes
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For extra decadence, top with cream cheese frosting or a brown butter glaze.
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Sweet potatoes should be well-mashed and cooled before adding to the batter.
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Store leftover cake covered at room temperature for up to 2 days, or refrigerate for longer freshness.
- Prep Time: 20 minutes
- Cook Time: 50 minutes
- Category: Dessert
- Method: Baking
- Cuisine: American
