Mini Layer Cakes (Made with Doctored Cake Mixes)

Learn how to make beautiful Mini Layer Cakes using doctored cake mixes, buttercream frosting, and fruit preserves. Perfect for graduations, tea parties, bridal showers, baby showers, and special occasions.

Mini Layer Cakes Made Easy

This week I wanted to make something special for a family from our church whose daughter recently graduated. Rather than baking a traditional layer cake, I decided to create individual mini layer cakes that would feel festive, elegant, and easy to share.

If you've spent any time here at Out of the Box Baking, you already know I love starting with a boxed cake mix and taking it to the next level. That's exactly what I did here.

These little cakes begin with doctored cake mixes baked in sheet pans, then cut into rounds and stacked with luscious buttercream frosting and strawberry preserves. The result is a bakery-style dessert that's surprisingly simple to make.

The best part? This recipe is endlessly customizable. Change the flavors, switch up the colors, or decorate them to fit any celebration.

Why You'll Love These Mini Layer Cakes

These cakes are:

• Made with doctored cake mixes
• Perfect for parties and showers
• Easy to customize
• Beautiful on a dessert table
• Easier than baking a traditional layer cake
• Ideal for graduations, birthdays, tea parties, and weddings

The Secret to Better Strawberry Cake

I've always loved strawberry cake mix, but I wanted to give it an extra boost.

For this batch, I added two tablespoons of Sonic Strawberry Instant Pudding Mix to the batter. That simple addition enhanced both the flavor and texture of the cake.

The pudding mix is completely optional, especially since it can be difficult to find in some areas. If you don't have it, the recipe will still work beautifully. But if you can find it, I highly recommend giving it a try.

The white cake layers also received a little boost from vanilla pudding mix, which added moisture and helped create a tender crumb.

Ingredients

You'll find a printable recipe card at the bottom of this post but here's a glance at what you'll need. These are simple ingredients readily available in any grocery store.

Strawberry Cake Layer

• 1 box strawberry cake mix
• 3 eggs
• ½ cup vegetable oil
• 1¼ cups milk
• 2 tablespoons strawberry instant pudding mix (optional)

Note: You will only use ⅔ of this batter for the strawberry cake. Reserve one cup for the middle cake.

White Cake Layer

• 1 box white cake mix
• 4 egg whites
• ½ cup vegetable oil
• 1¼ cups milk
• 2 tablespoons instant vanilla pudding mix
• 1 teaspoon vanilla extract

Note: You will only use ⅔ of this batter for the white cake. Reserve one cup for the middle cake.

Middle Layer

• 1 cup strawberry batter
• 1 cup white batter

Buttercream Filling

• 1 cup butter, softened
• 1 cup shortening
• 5-6 cups powdered sugar
• Heavy cream, as needed
• 2 teaspoons vanilla extract

Filling

• Strawberry preserves

Optional Decorations

• Mini meringues
• Pink sanding sugar
• Buttercream rosettes

How to Make Mini Layer Cakes

Prepare the Cake Layers

Preheat oven to 350 degrees Fahrenheit.

Prepare the strawberry cake batter using the strawberry cake mix, eggs, oil, milk, and optional strawberry pudding mix.

Prepare the white cake batter using the white cake mix, egg whites, oil, milk, vanilla pudding mix, and vanilla extract.

Remove approximately one cup of batter from each bowl and combine them to create a lighter middle layer.

Spread each batter into a prepared sheet pan. An offset spatula works well for creating an even layer.

Bake for approximately 16-18 minutes or until the cake springs back lightly when touched.

Allow cakes to cool completely, then chill before cutting.

Make the Buttercream

Beat butter and shortening until light and fluffy.

Add powdered sugar gradually. Mix in vanilla extract.

Add heavy cream until the frosting reaches a thick piping consistency. You can leave your frosting white or divide it and make part of it pink. That's up to you!

Place in piping bag and set aside.

This is also a great time to get your preserves into a piping bag. (I happened to have some lemon curd left over from a recent recipe so I decided to use it, too.)

Cut the Cake Rounds

Using a 2¼-inch round cutter, cut circles from all three cake layers.

This size creates the perfect proportion for mini layer cakes.

Assemble the Cakes

Place one strawberry cake round on a serving surface.

Pipe a ring of buttercream around the edge.

Fill the center with strawberry preserves.

Add the middle cake layer.

Repeat the frosting and preserves.

Top with the white cake layer and add a swirl of buttercream on top, piped like a rosette.

Decorate as desired with additional buttercream, mini meringues, and sanding sugar.

Chill Before Serving

Because these cakes are stacked, I recommend refrigerating them before serving.

The buttercream firms up nicely and helps stabilize the layers, making the cakes easier to transport and serve.

Tips for Success

• Use an offset spatula to spread the batter evenly in the pans.
• If your batter seems especially thick, add an extra tablespoon or two of milk.
• Chill the cakes before cutting for cleaner edges.
• Refrigerate assembled cakes before transporting.
• A 2¼-inch cutter produced approximately 30 mini cakes.

Variations

One of my favorite things about this recipe is how versatile it is. Try any of these delicious variations:

• Lemon cake with lemon curd
• Chocolate cake with chocolate buttercream
• Red velvet with cream cheese frosting
• White cake with raspberry preserves
• Seasonal color combinations for holidays and parties

Where to Serve These Beautiful Layer Cakes

These little mini cakes would be perfectly at home at any of the following:

Weddings: This is the obvious choice. Mini cakes at a wedding in place of a jumbo wedding cake? How fun!

Bridal Showers: Get the bridesmaids and guests in the mood for the big day with mini layer cakes, one per guest.

Baby Showers: What a lovely way to celebrate your little one! Pink for a girl, soft blue or teal for a boy. Or, for a gender reveal, mix it up - a few of each!

Graduations: These are so versatile! You can change up the color of the cake, frosting, and decorations to match the graduate's school colors!

Tea Parties: Can you imagine serving these alongside some petit fours or macarons at a lovely tea party? So fun!

Birthday Parties: No matter your party's theme, these little cakes would be a terrific addition!

Other Mini Desserts

If you love tiny hand-held desserts, you’ll flip over these other delicate treats from Out of the Box Baking. They're perfect for a pretty dessert table and will look amazing next to your pretty little layer cakes.

• Snickerdoodle Bars
• Strawberry Cake Pops
• Oreo Cake Balls/Truffles
• Red Velvet Truffles
• Hot Cocoa Fudge
• Cheesecake Bites
• Oreo Petit Fours
• Rocky Road Rice Krispy Treats
• Mint Chocolate Brownies
• Lemon Oreo Truffles
• Petit Fours 
• Brownie Bites
• Brownie Bottom Turtle Cheesecake Bars

Frequently Asked Questions

Can I make these ahead of time?

Yes. In fact, they're easier to handle after they've been refrigerated for several hours.

Do I have to use pudding mix?

No. The pudding mix is optional, but it adds flavor and moisture.

What size cutter should I use?

I used a 2¼-inch round cutter, which created the perfect mini cake size.

Can I use different fillings?

Absolutely. Jam, preserves, lemon curd, chocolate ganache, or even cookie butter would work well.

How should I store these cakes?

Store in an airtight container in the refrigerator for up to 4 days.

Can I freeze them?

Yes. Freeze in an airtight container for up to two months.

Baker's Bonus

Don't throw away those cake scraps!

The leftover cake can be layered into trifles, mixed with frosting for cake pops, or turned into mini dessert parfaits. The scraps are every bit as delicious as the finished cakes.

Final Thoughts

These Mini Layer Cakes may look fancy, but they're surprisingly simple to make thanks to a couple of doctored cake mixes and a little creativity.

Whether you're celebrating a graduation, hosting a tea party, planning a bridal shower, or simply looking for a beautiful dessert to share, these little cakes are sure to impress.

Thanks for Stopping By

If you make these mini cakes and love them (we know you will!) please leave a comment or review. And before you go, why not pin some photos to your Pinterest boards?

Janice Thompson is a professional baker, cake designer, and author with over 20 years of experience creating unique cakes and desserts. She’s the creator of Out of the Box Baking, where she shares her favorite doctored cake mix recipes, tutorials, and baking tips. Learn more →