This sweet potato pound cake turns a humble root vegetable into one of the most comforting desserts I make all fall. It’s dense, buttery, and lightly spiced, with a brown butter glaze that makes every slice look bakery-worthy.
Table of Contents
Why You’ll Love This Sweet Potato Pound Cake
- One bundt pan makes a bakery-worthy dessert with almost no fuss.
- Roasted sweet potato keeps every slice moist and lightly spiced.
- The brown butter glaze adds a nutty finish you won’t get from a plain icing.
Ingredients You’ll Need
- Unsalted butter — creamed with the sugar for 3-4 minutes to build the fine, tender crumb pound cake is known for.
- Light brown sugar — adds moisture and a soft caramel note that pairs naturally with sweet potato.
- Mashed cooked sweet potato — roast it instead of boiling so the mash stays thick and doesn’t water down the batter.
- Cinnamon and nutmeg — warm spices that let the sweet potato flavor come through instead of masking it.
- Buttermilk — tenderizes the crumb and balances the sweetness with a little tang.
- Salted butter (for the glaze) — browned until nutty, it’s what makes this glaze taste different from a basic powdered sugar icing.
How to Make Sweet Potato Pound Cake
- Roast the sweet potatoes. Bake 2 medium sweet potatoes at 425°F for about 45 minutes until fork-tender, then cool, peel, and mash until smooth (you’ll need 1½ cups).
- Prep the pan and oven. Preheat oven to 325°F and grease a 10-cup bundt pan thoroughly, including the center tube.
- Cream butter and sugar. Beat 1½ cups butter and 2½ cups brown sugar together for 3-4 minutes until light and fluffy.
- Add eggs and sweet potato. Beat in 5 eggs one at a time, then mix in the 1½ cups mashed sweet potato and 1 tablespoon vanilla.
- Alternate dry and wet. Whisk 3 cups flour, 1 teaspoon baking powder, ½ teaspoon baking soda, 1½ teaspoons cinnamon, ½ teaspoon nutmeg, and 1 teaspoon salt in a separate bowl. Add it to the batter in three additions, alternating with ½ cup buttermilk, mixing just until combined each time.
- Bake. Pour batter into the prepared pan, tap on the counter to release air bubbles, and bake at 325°F for 65-70 minutes, until a toothpick inserted in the center comes out clean.
- Cool and glaze. Cool in the pan 20 minutes, then invert onto a rack to cool completely. Brown ¼ cup butter in a saucepan until it smells nutty, then whisk in 1 cup powdered sugar, 2 tablespoons milk, and ½ teaspoon vanilla. Drizzle over the cooled cake.
Tips for Success
Roast, don’t boil, the sweet potatoes. Boiling adds extra moisture that can make the cake dense. Roasting concentrates the flavor and keeps the mash drier.
Watch the brown butter closely. It goes from nutty to burnt in seconds once it starts browning. Pull it off the heat the moment you smell that toasty aroma.
Use room-temperature everything. Cold eggs or buttermilk can cause the batter to look curdled and bake unevenly. Set them out an hour before you start.
Variations to Try
- Swap the brown butter glaze for a simple cream cheese glaze.
- Add ½ cup chopped toasted pecans to the batter for crunch, similar to the topping on these sweet potato pie bars.
- Stir in ¼ teaspoon ground ginger for a spicier, gingerbread-adjacent flavor.
- Bake in two 9×5-inch loaf pans instead of a bundt for easier gifting.
What to Serve With Sweet Potato Pound Cake
A slice of this pound cake is rich enough to serve on its own with coffee, but a dollop of lightly sweetened whipped cream makes it feel extra special. For a fall brunch spread, set it out alongside these sweet potato muffins.
If you’re building a holiday dessert table, this cake pairs beautifully with something warm and spiced, like mulled cider.
Frequently Asked Questions
Can I use canned sweet potato puree for this pound cake?
Yes, canned puree works well and saves time — just make sure it’s 100% sweet potato, not pie filling. You’ll need 1½ cups.
How do I store sweet potato pound cake?
Keep it covered at room temperature for up to 3 days, or refrigerate up to a week. Bring to room temperature before serving for the best texture.
Can I freeze this cake?
Yes, freeze the unglazed cake tightly wrapped for up to 3 months. Thaw overnight in the fridge, then make the glaze fresh before serving.
Why did my bundt cake stick to the pan?
This usually means the pan wasn’t greased into every groove. Use softened butter or baking spray and get into every curve, including the center tube.
Final Thoughts
This sweet potato pound cake turns a humble vegetable into one of the most comforting desserts I make all fall. It’s dense, buttery, and just sweet enough, with a glaze that makes every slice look bakery-worthy.
Whether it’s for a holiday table or a quiet Sunday with coffee, I hope this cake becomes a new tradition in your kitchen.
Sweet Potato Pound Cake
Ingredients
Cake
- 1 1/2 cups unsalted butter, softened
- 2 1/2 cups packed light brown sugar
- 5 large eggs
- 1 1/2 cups mashed cooked sweet potato about 2 medium, roasted
- 1 tbsp vanilla extract
- 3 cups all-purpose flour
- 1 tsp baking powder
- 1/2 tsp baking soda
- 1 1/2 tsp ground cinnamon
- 1/2 tsp ground nutmeg
- 1 tsp salt
- 1/2 cup buttermilk
Brown Butter Glaze
- 1/4 cup salted butter
- 1 cup powdered sugar
- 2 tbsp milk
- 1/2 tsp vanilla extract
Instructions
- Bake 2 medium sweet potatoes at 425°F for about 45 minutes until fork-tender, then cool, peel, and mash until smooth (you’ll need 1½ cups).
- Preheat oven to 325°F and grease a 10-cup bundt pan thoroughly, including the center tube.
- Beat 1½ cups butter and 2½ cups brown sugar together for 3-4 minutes until light and fluffy.
- Beat in 5 eggs one at a time, then mix in the 1½ cups mashed sweet potato and 1 tablespoon vanilla.
- Whisk 3 cups flour, 1 teaspoon baking powder, ½ teaspoon baking soda, 1½ teaspoons cinnamon, ½ teaspoon nutmeg, and 1 teaspoon salt in a separate bowl. Add it to the batter in three additions, alternating with ½ cup buttermilk, mixing just until combined each time.
- Pour batter into the prepared pan, tap on the counter to release air bubbles, and bake at 325°F for 65-70 minutes, until a toothpick inserted in the center comes out clean.
- Cool in the pan 20 minutes, then invert onto a rack to cool completely. Brown ¼ cup butter in a saucepan until it smells nutty, then whisk in 1 cup powdered sugar, 2 tablespoons milk, and ½ teaspoon vanilla. Drizzle over the cooled cake.