Name: Small Batch Vanilla Cake with Vanilla Buttercream Recipe
Prep time: 30 min
Cook time: 25 min
Total time: 2 h 40 min
Cuisine: American
Ingredients: 3/4 Cups (79g) sifted cake flour*; 1 tsp baking powder; 1/4 tsp salt; 1/4 Cup (57g) unsalted butter, room temperature; 1/2 Cup (100g) granulated sugar; 1 large egg, room temperature; 2 Tbsp (30g) sour cream, room temperature; 1 tsp pure vanilla extract; 1/3 Cup (80ml) whole milk, room temperature; 1/2 Cup (113g) unsalted butter, room temperature; 1 1/2 Cups (180g) powdered sugar; 1 tsp pure vanilla extract; 1 Tbsp whole milk or heavy whipping cream, room temperature; pinch of salt, or to taste

If you’re craving a delicious and perfectly proportioned treat, look no further than this Small Batch Vanilla Cake with Vanilla Buttercream Recipe. It’s the kind of cake that brings together the comforting flavors of pure vanilla in both the tender, moist cake layers and the luxuriously smooth buttercream frosting. Made with simple, everyday ingredients and designed to serve just four, this cake is ideal for intimate celebrations, cozy afternoons, or whenever you want to enjoy something homemade without the hassle of a big batch. The charming little layers and creamy frosting come together beautifully, making it a personal favorite you’ll revisit again and again.

Ingredients You’ll Need

Three round yellow cake layers are arranged on a black cooling rack over a white marbled surface, showing a soft and spongy texture. To the left, a clear glass bowl contains light pink whipped frosting with a silver spatula resting inside it. In the bottom left corner, a white bowl filled with colorful rainbow sprinkles adds a pop of color, and a black and white checkered cloth is partially visible beneath it. The overall setting is bright and clean with a baking prep vibe. photo taken with an iphone --ar 4:5 --v 7

One of the best things about this Small Batch Vanilla Cake with Vanilla Buttercream Recipe is how straightforward the ingredient list is. Each component plays an essential role in building the cake’s delicate texture, rich vanilla flavor, and buttery crumb that melts in your mouth.

Sifted cake flour (3/4 Cups or 79g): Key for a tender crumb and soft texture, sifted to perfect airiness.
Baking powder (1 tsp): Helps your cake rise to fluffy perfection.
Salt (1/4 tsp): Enhances and balances the sweetness, unlocking the full flavor.
Unsalted butter (1/4 Cup or 57g for cake, plus 1/2 Cup or 113g for frosting): Adds rich creaminess and moisture, essential for that classic butter flavor.
Granulated sugar (1/2 Cup or 100g): Sweetens the cake and helps create that wonderfully light texture.
Large egg (1, room temperature): Binds everything together and provides structure.
Sour cream (2 Tbsp or 30g): Keeps the cake moist and tender with a subtle tang.
Pure vanilla extract (1 tsp for cake, 1 tsp for frosting): Delivers the signature warm, fragrant vanilla flavor that defines this recipe.
Whole milk (1/3 Cup or 80ml for cake, 1 Tbsp for frosting): Adds moisture and helps create a smooth, workable batter and frosting.
Powdered sugar (1 1/2 Cups or 180g for frosting): Sweet and fluffy, essential for that silky buttercream taste.
Pinch of salt (for frosting): Balances the sweetness and enriches the buttercream depth.

TIP

You’ll find the full ingredient list, instructions, and print option in the recipe card below.

How to Make Small Batch Vanilla Cake with Vanilla Buttercream Recipe

Step 1: Prepare Your Pans and Preheat

Start by heating your oven to 350ºF. To ensure your lovely layers don’t stick, lightly spray three 4-inch pans or one 6-inch pan with cooking spray. Don’t forget to line the bottoms with parchment or wax paper rounds for that perfect, easy release after baking.

Step 2: Cream Butter and Sugar

Using a stand mixer or hand mixer, beat the butter and granulated sugar on medium-high speed until the mixture is light and fluffy—about three minutes. This step is crucial for a tender cake crumb and creates the airiness that’ll make your cake truly dreamy.

Step 3: Incorporate Egg, Vanilla, and Sour Cream

Switch your mixer to low and add the egg, mixing gently until combined. Be sure to scrape the sides to avoid any pockets of unmixed batter. Then pour in the vanilla and sour cream, and crank the speed back up to high for one full minute to combine everything into a beautifully smooth mixture—even if it looks a little curdled now, don’t worry. This process builds the foundation of flavor and moisture.

Step 4: Add Dry Ingredients and Milk

Turn your mixer speed down low and add the flour, baking powder, and salt all at once. Mix until just blended, then slowly add the milk, continuing on low speed until smooth. Scrape the bowl and whisk lightly to ensure no lumps remain. The batter will be on the thinner side, which is just right for this delicate cake.

Step 5: Bake Your Cake Layers

Divide the batter evenly among your prepared pans. Bake the 4-inch pans for 18 to 22 minutes, or the 6-inch pan for 24 to 28 minutes. To check if your cake is done, gently press the top: it should spring back, and a toothpick inserted in the center should come out clean. Let the cakes cool completely before frosting.

Step 6: Whip Up the Vanilla Buttercream

Using your mixer’s paddle attachment or a hand mixer, beat the butter on medium-high until it becomes light and almost white in color, about five minutes. Then, turn off the mixer and add powdered sugar, vanilla, milk, and a pinch of salt. Mix on low speed until smooth and fully combined, pausing to scrape the bowl a couple of times. The result is a silky, creamy buttercream that is absolutely enchanting.

Step 7: Assemble and Decorate

Once your cake layers are thoroughly cooled, level each one to your preferred height. Place a smear of buttercream on a cake board or plate to stabilize the base, then stack and fill the layers with the frosting. After crumb coating the cake, chill it in the fridge for at least 30 minutes so the buttercream firms up. Finish with a smooth final coat and a pretty piped border using a star tip. Add sprinkles or any decoration you love to make it special!

How to Serve Small Batch Vanilla Cake with Vanilla Buttercream Recipe

A small round cake with three layers of light yellow sponge and two layers of light pink frosting in between, all covered in smooth light pink frosting. The top edge is decorated with evenly spaced small pink frosting swirls, each topped with bright, colorful sprinkles in blue, yellow, red, green, and purple. Around the base is a thick band of the same sprinkles. A slice is missing showing the inside layers. The cake sits on a white cake stand on a white marbled surface with a soft pink cloth nearby. In the background, there is a white plate holding the missing slice and a small clear bowl filled with more sprinkles. Photo taken with an iphone --ar 4:5 --v 7

Garnishes

To elevate your Small Batch Vanilla Cake with Vanilla Buttercream Recipe, think beyond traditional sprinkles. Fresh berries, such as raspberries or blueberries, add a pop of color and a burst of fresh flavor. Edible flowers or a dusting of finely grated white or dark chocolate can transform your cake into a showstopper worthy of any celebration.

Side Dishes

This cake pairs wonderfully with a scoop of vanilla bean ice cream or a dollop of freshly whipped cream for an extra touch of indulgence. A small serving of fresh fruit salad or a light coffee can beautifully complement the cake’s sweetness and enhance the overall dessert experience without overpowering it.

Creative Ways to Present

Try presenting your Small Batch Vanilla Cake with Vanilla Buttercream Recipe on a rustic wooden board with scattered edible flowers and a sprinkle of powdered sugar for a charming touch. You could even cut the cake into petite squares for an elegant tea party style or assemble mini cake sandwiches for a fun twist that guests will adore.

Make Ahead and Storage

Storing Leftovers

Keep your cake fresh by storing it in an airtight container in the refrigerator. The buttercream helps seal in moisture, preserving the cake’s softness for up to 3 days. Before serving, let it sit at room temperature for about 30 minutes so the buttercream softens and the cake is tender and delicious.

Freezing

You can freeze the cake layers separately, wrapped tightly in plastic wrap and then foil, for up to 2 months. When ready to use, thaw them overnight in the fridge and bring to room temperature before frosting. The buttercream can also be frozen in an airtight container but should be whipped again briefly before spreading.

Reheating

This cake is best enjoyed fresh or chilled, but if you want to warm a slice, gently microwave it for 10 to 15 seconds. This warms the buttercream slightly and intensifies the vanilla aroma, making each bite irresistibly comforting.

FAQs

Can I substitute cake flour with all-purpose flour?

Yes, but cake flour yields a lighter, more tender cake because of its lower protein content. If using all-purpose flour, consider removing 2 tablespoons per cup and replacing with cornstarch to mimic cake flour’s texture.

Why does the batter look curdled after adding sour cream?

This is completely normal and nothing to worry about. The curdled appearance will smooth out once the dry ingredients and milk are incorporated, resulting in a silky batter.

What’s the best way to get even cake layers?

Leveling your cake layers with a serrated knife or cake leveler after baking and cooling helps create an even stack, which leads to a professional-looking finished cake.

Can I make this cake dairy-free?

Absolutely! Substitute butter with your favorite dairy-free spread and use a plant-based milk like almond or oat milk. Just ensure all replacements are at room temperature for best results.

How long does it take to make this cake from start to finish?

The entire process, including baking, cooling, and assembling, takes about 2 to 2 1/2 hours. Cooling time is essential for a clean frosting finish and to fully enjoy the flavors.

Final Thoughts

This Small Batch Vanilla Cake with Vanilla Buttercream Recipe is a true gem, perfect for when you want a little slice of happiness without baking a huge cake. Its simplicity, balanced texture, and unbeatable vanilla flavor have made it one of my all-time favorites, and I’m excited for you to try it too. Whether you’re celebrating a special occasion or just treating yourself, this cake promises smiles and sweet moments with every bite.