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5 from 15 reviews

This 4 inch cake recipe is the perfect size for just a handful of people to share! It also makes a perfect vanilla smash cake or mini birthday cake. It’s deliciously light and fluffy, easy to make, and super cute!

Piece of 4 inch vanilla cake with sprinkles pictured laying flat on a plate next to a fork

There’s just something so adorable about mini desserts isn’t there?! The same way that mini donuts are somehow so much cuter than regular donuts, this mini cake is somehow cuter than a regular sized vanilla cake!

The base of this 4 inch cake recipe, as well as the vanilla buttercream, is adapted from my recipe for vanilla cupcakes.

This recipe uses a reverse creaming method, where the butter is mixed into the dry ingredients, and it gives it such a light and fluffy crumb!

Why You’ll Love This 4 Inch Cake Recipe

  • It’s the perfect little personal cake size, and it’ll yield enough cake for around 6 slices. 
  • This mini cake can be made using regular or dairy free ingredients – it’s been tested both ways.
  • 4 inch pans make this recipe the perfect size for a mini birthday cake or even a smash cake!
  • This 4 inch cake recipe uses the reverse creaming method, where the butter is mixed directly into the dry ingredients, making the cake layers extra light and fluffy.
  • This recipe can easily be made in two 6 inch round cake pans instead of 4 inch cake pans!

Ingredients Needed

4 inch cake recipe ingredients in bowls with labels
  • Flour: This 4 inch cake recipe calls for all-purpose flour, and has not been tested with gluten free flour.
  • Milk: Regular milk, or dairy free milk works great. I like to use soy milk in my cakes.
  • Butter: Regular or vegan butter works great in both the cake and the buttercream recipe.
  • Oil: Be sure to use a neutral oil like canola, sunflower, or grapeseed oil.
  • Vanilla Extract: Because vanilla is the main flavor of this cake, I highly recommend using real vanilla extract if you can. It makes a huge difference!

Step By Step Instructions

Note: Full ingredient measurements and instructions can be found in the recipe card at the bottom of this page.

Step One: Preheat the oven to 350°F and prepare three 4 inch round cake pans. Spray the inside with cooking spray, then cut out pieces of parchment paper so that they fit in the bottom of each pan (do not skip this step!). Set the pans aside.

Step Two: Add flour, salt, baking powder, and sugar to the bowl of a standing mixer or handheld mixer. Whisk them together until combined. 

Step Three: Add the butter into the bowl of the dry ingredients and beat until the butter is incorporated and the mixture resembles the texture of sand.

Step Four: Pour in vanilla extract, milk, and oil and mix again. Lastly, add in the egg and mix until just combined (don’t over-mix). 

Baking process for 4 inch mini cake in 6 different pictures

Step Five: Divide the cake batter between the three cake pans and bake for 18-24 minutes, or until a toothpick inserted in the middle of the cakes comes out clean. 

Let the cakes cool in the pan for 10-15 minutes, then remove them from the pan (by running a butter knife or offset spatula around the edges and then flipping the cake upside down onto a cooling rack). While the cakes cool, make the buttercream. 

Step Six: In the bowl of a mixer, beat the butter (and vegetable shortening if using) together until combined, then add in vanilla extract and food coloring (if using).

Add in the powdered sugar, ¼ cup at a time until your desired consistency is reached. If the buttercream is too thick, you can add ½ tablespoon of milk in at a time, thinning it out as much as you’d like. If buttercream is too thin, add in more powdered sugar ¼ cup at a time.

Whole 4 inch cake covered in sprinkles on a plate

Assembling the Mini Cake

To assemble the cake, you can either make a naked cake, do a crumb coat or you can just frost the outside of the cake in the traditional way.

To make a crumb coat, add a thin layer of frosting to the outside of the cake, scraping off the excess with a bench scraper (this is called a crumb coat). Then place the cake in the freezer for 20 minutes then add another layer of frosting. 

If you’d rather skip the crumb coat, you can simply frost the outside of the cake in one layer then decorate with sprinkles or as desired. Have fun with it!

Piece of mini cake close up plated with sprinkles around

Expert Tips

  • Properly measure your flour –  If you over-measure your flour, the cake could turn out dry and crumbly. It is very easy to over-measure your flour, so I strongly recommend weighing it with a $10 kitchen scale or using the scoop and level method.
  • Line your pans with parchment paper! It’s the best way to prevent sticking. You should also grease the sides of the pans.
  • Careful not to over-mix your batter! Over-mixing the cake batter will affect the texture of the cakes.

Storage Instructions

The cake can be stored covered at room temperature for 3-4 days. 

You can also freeze the cake layers if you want to make this cake ahead of time. Let them cool completely, then tightly wrap each individual cake layer in parchment paper, then aluminium foil. Freeze in ziploc bags for up to 3 months, then let them thaw at room temperature.

You can store leftover buttercream in an airtight container in the freezer for up to 2 months. Thaw it in the fridge then re-whip it using a handheld or standing mixer before frosting the cakes.

More Small Batch Recipes You’ll Love

If you make this recipe, let me know how it went in the comments below, I’d love to hear from you! You can also tag me on Instagram or Facebook so I can check it out!

Single peice of 4 Inch vanilla cake pictures on a plate next to a fork with colourful sprinkles around
5 from 15 reviews

4 Inch Cake Recipe

This 4 inch cake recipe is the perfect size for just a handful of people to share! It also makes a perfect vanilla smash cake or mini birthday cake.

Ingredients
 

4 Inch Vanilla Cake

  • 1 cup + 1 Tablespoon (138 g) all-purpose flour
  • 1 teaspoon baking powder
  • ½ cup (100 g) granulated sugar
  • cup (26 g) butter, softened, (regular or dairy free)
  • ¼ cup (59 ml) oil (canola oil, vegetable oil, grapeseed oil, or sunflower oil)
  • 1 egg
  • ½ teaspoon salt
  • teaspoon vanilla extract
  • cup (83 ml) milk of choice, (regular or dairy free)

Vanilla Buttercream

  • ¾ cup (158 g) regular or dairy free butter, softened, SEE NOTES if using dairy free
  • ¾ teaspoon vanilla extract
  • teaspoon salt
  • 1½-2 cups (180 g) powdered sugar (icing sugar)
  • sprinkles (optional)
  • food coloring (optional)

Instructions
 

  • Preheat the oven to 350°F and prepare three 4 inch round cake pans. Spray the inside with cooking spray, then cut out pieces of parchment paper so that they fit in the bottom of each pan (do not skip this step!). Set the pans aside.
  • Add flour, salt, baking powder, and sugar to the bowl of a standing mixer or handheld mixer. Whisk them together until combined.
  • Add the butter into the bowl of the dry ingredients and beat until the butter is incorporated and the mixture resembles the texture of sand.
  • Pour in vanilla extract, milk, and oil and mix again. Lastly, add in the egg and mix until just combined (don't over-mix).
  • Divide the cake batter between the three cake pans and bake for 18-24 minutes, or until a toothpick inserted in the middle of the cakes comes out clean.
  • Let the cakes cool in the pan for 10-15 minutes, then remove them from the pan (by running a butter knife or offset spatula around the edges and then flipping the cake upside down onto a cooling rack). While the cakes cool, make the buttercream.

Vanilla Buttercream

  • In the bowl of a mixer, beat the butter (and vegetable shortening if using) together until combined, then add in vanilla extract.
  • Add in the powdered sugar, ¼ cup at a time until your desired consistency is reached. If the buttercream is too thick, you can add ½ tablespoon of milk in at a time, thinning it out as much as you'd like. If buttercream is too thin, add in more powdered sugar ¼ cup at a time.

Assembling the Cake

  • Add an even layer of buttercream between each of the completely cooled cake layers.
  • Frost the outside of the cake, scraping off the excess frosting with a bench scraper (this is called a crumb coat). Then place the cake in the freezer for 20 minutes then add another layer of frosting.
  • If you'd rather skip the crumb coat, you can simply frost the outside of the cake in one layer then decorate with sprinkles or as desired.

Video

Notes

Please Note: I highly recommend using a kitchen scale to weigh your dry ingredients. Metric measurements are found above under the “Metric” tab.
Parchment Lining: I highly recommend lining your cake pans with parchment paper. It’s an easy way to avoid the cake breaking when you try to remove it from the pan. To do this, trace then cut a circle in the shape of your cake pan out of the parchment paper and place it inside the pans.
Measuring Flour: Either measure your flour using a kitchen scale or use the proper scoop and level method.
Dairy Free Butter: If you’re using dairy free butter in the buttercream, I recommend using ¼ cup of shortening and ½ cup of butter to help keep the buttercream firmer. 
Cake Pan Size: This recipe can also be made with two 6 inch round cake pans.
Storage and Freezing Instructions:
The cake can be stored covered at room temperature for 3-4 days. 
You can also freeze the cake layers if you want to make this cake ahead of time. Let them cool completely, then tightly wrap each individual cake layer in parchment paper, then aluminium foil. Freeze in ziploc bags for up to 3 months, then let them thaw at room temperature.
You can store leftover buttercream in an airtight container in the freezer for up to 2 months. Thaw it in the fridge then re-whip it using a handheld or standing mixer before frosting the cakes.
 
Calories: 500kcal, Carbohydrates: 79g, Protein: 6g, Fat: 37g, Saturated Fat: 16g, Polyunsaturated Fat: 5g, Monounsaturated Fat: 13g, Trans Fat: 1g, Cholesterol: 88mg, Sodium: 556mg, Potassium: 66mg, Fiber: 1g, Sugar: 46g, Vitamin A: 929IU, Calcium: 74mg, Iron: 2mg
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The calorie information provided for this recipe is an estimate. The accuracy of the calories listed is not guaranteed.