With an easy stir-together method and a naturally sweet flavor, this delicious Sweet Potato baby cake is the perfect cake for a first birthday. It’s easy, flavorful, and delicious for baby…and grown-ups! (It also makes a festive holiday dessert!)
Sometimes I wish I could go back in time and have all of my first birthday cakes developed so I could have made them for all of my babies—but at least I get to share them with you now!
This simple and healthy baby cake is easy to stir together, perfect to make ahead, and sweetened with mashed sweet potato and maple syrup so it’s an ideal first birthday cake.
While I love this cake myself, it is especially great as a first birthday cake. It is super soft, has nice flavor, and is lightly sweetened with maple syrup. It’s such a fun smash cake, especially if you have a baby who loves sweet potato baby food!
We often have this in the fall as a seasonal dessert to share with the whole family. It’s a great kid-friendly Thanksgiving recipe or a fall kids birthday cake recipe.
(You may also like my First Birthday Smash Cake, One-Year-Old Birthday Cake, Blueberry Smash Cake, and Healthy Banana Cake.)
Table of Contents
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Ingredients You Need
To make this baby cake, you’ll need to have the following ingredients on hand and ready to go.
- Mashed sweet potato: You can use any type of cooked mashed sweet potato including Crockpot Sweet Potato, Sweet Potato Baby Food, or Sweet Potato Puree. This is easy to make, but you’ll want to plan to make it ahead of baking. You can also use canned unsweetened sweet potato puree.
- Vegetable oil: This helps to keep the cake nice and moist. You can also use melted unsalted butter or avocado oil if you prefer.
- Maple syrup: We use this as the sweetener in this recipe. You can also use honey for kids over age 1 if you prefer.
- Egg: This helps bind the ingredients together.
- Vanilla extract: Adding a bit of vanilla extract helps give the cake a yummy flavor.
- All-purpose flour: This helps the cake stay light and fluffy.
- Baking powder and baking soda: These help ensure the cake rises and bakes through evenly.
- Cinnamon: This adds that classic sweet potato cake flavor.
- Cream Cheese Frosting: This is a simple mix of cream cheese, maple syrup, and vanilla, and is the perfect pairing with sweet potato cake.
Ingredient Substitutions
- You can use pumpkin puree in place of the sweet potato if you prefer.
- If you’d prefer to use whole wheat pastry flour in place of the all-purpose, you can do that.
- Use honey instead of maple syrup for kids over 1 if desired.
- Gluten-free: Use a 1:1 style of gluten-free all purpose flour.
Step-by-Step Instructions
Here’s a look at the process involved in making this baby cake. Scroll down to the bottom of this post for the full recipe, including the amounts and timing.
Step 1. Stir the wet ingredients together in a large bowl.
Step 2. Gently stir in the dry ingredients.
Step 3. Line the cake pans with circles of parchment paper.
Step 4. Divide the batter into the pans and bake!
Step 5. Make the cream cheese frosting.
Step 6. Top one layer with some of the frosting and spread evenly. Add the second layer and frost to the edges.
TIP: Trace the cake pans onto parchment paper, then cut out just inside the lines to make rounds that fit into the pans. This is a foolproof way to line pans to prevent the baby cakes from sticking.
Sweet Potato Smash Cake
If you’re looking for a smash cake for the kids, this sweet potato cake is great since it’s 6 inches and super soft and easy to smash. It also is a nice blend of nutritious ingredients in a really festive form.
It has a lightly sweet flavor, so it’s perfect for babies turning 1. And the cream cheese frosting simply needs to be stirred together and spread on. Nothing fussy there!
Make-Ahead Tips
You can make the baby cakes a day ahead, let cool, and store in airtight containers at room temperature. You can even frost the whole thing and wrap carefully with plastic wrap and store in the fridge up to 24 hours ahead.
It can be hard to wrap it tightly without messing up the frosting, so I usually wait to frost it, but if you have a cake carrier, that could work, too!
How to Store
Store leftover baby cake in the fridge once frosted for up to 3-5 days in an airtight container or wrapped with plastic.
Best Tips for Success
- Top baby cake with sprinkles if desired. These naturally colored ones are pretty!
- If making the sweet potato puree, plan to do that step ahead of time (even up to three days ahead if you store it in an airtight container in the fridge) so the sweet potato is cool when you are ready to make the cake. You can also just do it an hour or two before you plan to bake.
- The baby cake can be made 24 hours before you plan to frost it. Let cool completely on a wire rack, then store in an airtight container at room temperature. (It’s also fine to frost it the day before if you can carefully wrap it in plastic wrap and store in the fridge to keep it fresh.)
- Use as a smash cake for a baby or to share with the whole family.
- Gluten-free: Use cup-for-cup gluten-free flour.
- Egg-free: Increase the baking soda to 1 teaspoon, omit the egg, and add 2 tablespoons milk.
- The whole wheat pastry flour will create a slightly denser cake.
- The batter makes 24 mini cupcakes, using about 1 tablespoon batter in each and baking for 12-14 minutes.
Related Recipes
I’d love to hear your feedback on this cake if you make it, so please rate and comment below!
Sweet Potato Baby Cake
Ingredients
Sweet Potato Cake
- 1 cup mashed sweet potato puree
- ½ cup vegetable oil
- ¼ cup maple syrup
- 1 egg lightly beaten
- 1 teaspoon vanilla extract
- 1 cup all-purpose flour or whole wheat pastry flour
- 1 teaspoon baking powder
- ½ teaspoon baking soda
- ½ teaspoon cinnamon
- ¼ teaspoon salt
Cream Cheese Frosting
- 8 ounces cream cheese (softened at room temperature for at least an hour—it should be soft when you poke it with your finger)
- 2 tablespoons maple syrup
- ½ teaspoon vanilla extract
Instructions
To make the cake:
- Preheat the oven to 350 degrees F and grease two cake pans and line with a round of parchment paper cut to fit the inside of each pan. (Use the pan to trace the pan onto the paper, then cut out just inside the line.) Coat the top of the paper with nonstick spray, too.
- Whisk together the sweet potato, oil, maple syrup, egg, and vanilla in a large bowl.
- Stir in the flour, baking powder, baking soda, cinnamon and salt to just combine.
- Divide the batter among the prepared pans, using about a heaping cup in each. Smooth to spread the batter evenly.
- Bake for 18-20 minutes or until a cake tester inserted into the center comes out clean.
- Transfer to a wire rack to cool for 5 minutes, then gently invert onto a wire rack to remove from pans and cool completely.
To make the frosting:
- Add the cream cheese to a medium bowl with maple syrup and vanilla extract. Mix together with a whisk until fluffy. (If this is hard to do due to the temperature of your cream cheese, you can use an electric handheld mixer.)
To assemble the cake:
- Place one cake on a cake stand or plate.
- Spread about half of the frosting on top of one cake, add the second cake, then top with the remaining frosting, spreading smooth.
- Add sprinkles if desired.
Video
Notes
- Top with sprinkles if desired. These naturally colored ones are pretty!
- The cake can be made 24 hours before you plan to frost it. Let cool completely on a wire rack, then store in an airtight container at room temperature. (It’s also fine to frost it the day before if you can carefully wrap it in plastic wrap and store in the fridge to keep it fresh.)
- Store leftovers in the fridge once frosted for up to 3-5 days in an airtight container or wrapped with plastic.
- Gluten-free: Use cup-for-cup gluten-free flour.
- Egg-free: Increase the baking soda to 1 teaspoon, omit the egg, and add 2 tablespoons milk.
- The whole wheat pastry flour will create a slightly denser cake.
- The batter makes 24 mini cupcakes, using about 1 tablespoon batter in each and baking for 12-14 minutes.
Nutrition
This post was originally published May 2015.
We made it for the 1st Birthday yesterday and tried it today! Approved by the 5 yo and husband. The little sweet girl didn’t want to try the cake, just blueberries and grapes which I used for decoration 😅
We will make this cake again!
Thanks for sharing!
I made this cake but I had issues. The cake is dense. Not sure why it isn’t fluffy like my other cakes. My sweet potatoes weren’t super smooth . Could that have been the issue? I mixed this cake by hand in an attempt to not over mix.
It is possible it would not be smooth or fluffy if the potatoes were not a smooth puree.
I was curious if you could add cocoa powder to give this a bit of a chocolate flavor? I would assume you would need to adjust the moisture content. Or maybe just add melted chocolate to it? The recipe sounds so delicious, my toddler was just requesting a chocolate cake.
I bet you could replace 1/4 cup of the flour with cocoa powder.
I made this Delicious Cake for my daughter first Birthday and damm 🤤 I’m a home baker and let me tell you I get in love with this recipe I almost eat the whole cake by my self is so delicious and super moist this is the perfect smash cake Thank you for sharing
Yay!!