Copycat Costco Vanilla Cake

Name: Copycat Costco Vanilla Cake
Prep time: 20 min
Cook time: 30 min
Total time: 50 min
Yield: 12 servings
Ingredients: 2 ½ cups all-purpose flour; 2 ½ tsp baking powder; ½ tsp salt; 1 cup unsalted butter, softened; 2 cups granulated sugar; 4 large eggs; 1 tbsp vanilla extract; 1 cup whole milk; 1 cup unsalted butter, softened; 4 cups powdered sugar; 2 tsp vanilla extract; 1-2 tbsp milk, as needed

Highlighted under: Gourmet Baking Bliss

Recreate the beloved Costco Vanilla Cake at home with this easy-to-follow recipe that captures the light and fluffy texture, topped with creamy vanilla frosting.

Created by

Emma

Last updated on 2025-12-10T16:58:19.958Z

This Copycat Costco Vanilla Cake recipe is perfect for those who love the soft, moist texture and sweet vanilla flavor of the original. It's ideal for birthdays, celebrations, or any sweet occasion!

        Why You'll Love This Recipe
        Light and fluffy cake that melts in your mouth
Decadent vanilla frosting with a hint of almond
Perfect for any occasion, from birthdays to casual gatherings

      

The Perfect Celebration Cake

When it comes to celebrating special moments, a cake can make all the difference. This Copycat Costco Vanilla Cake is not just a dessert; it’s a centerpiece that brings everyone together. Its light and fluffy texture is ideal for birthdays, anniversaries, or any gathering that calls for a sweet touch. Plus, with its simple yet delicious flavor, there’s no wonder that it’s a crowd favorite!

One of the best things about this cake is its versatility. You can easily customize it to fit the theme of your occasion. Whether you want to add fresh fruits, colorful sprinkles, or themed decorations, the base cake allows for endless creative possibilities. This makes it not just a delicious treat but also a fun project for anyone who loves baking.

Secrets to Achieving Fluffiness

Achieving that light and fluffy texture characteristic of the Costco Vanilla Cake is all about technique. Start by ensuring your butter is softened to room temperature; this allows it to cream beautifully with the sugar, trapping air bubbles that help the cake rise. Additionally, be sure to not overmix the batter once the dry ingredients are added, as this can lead to a denser cake.

Another tip is to let your ingredients come to room temperature before starting. This includes your eggs and milk, which helps to create a well-emulsified batter. By following these steps, you’ll set the foundation for a cake that not only looks impressive but also delivers on flavor and texture.

Frosting Tips for a Showstopper

The frosting is just as important as the cake itself, and this recipe’s creamy vanilla frosting is the perfect complement to the light cake. To achieve a smooth and spreadable consistency, make sure your butter is softened but not melted. This will help create that decadent, fluffy texture that everyone loves.

If you find your frosting too thick, simply add a tablespoon of milk at a time until you reach your desired consistency. For an extra touch of flavor, consider adding a splash of almond extract to enhance the vanilla. With these tips, your frosting will not only taste heavenly but also look stunning when adorned on your cake!

Ingredients

For the Cake

2 ½ cups all-purpose flour
2 ½ tsp baking powder
½ tsp salt
1 cup unsalted butter, softened
2 cups granulated sugar
4 large eggs
1 tbsp vanilla extract
1 cup whole milk

For the Frosting

1 cup unsalted butter, softened
4 cups powdered sugar
2 tsp vanilla extract
1-2 tbsp milk, as needed

Make sure all ingredients are at room temperature for the best results.

Instructions

Prepare the Cake Batter

Preheat your oven to 350°F (175°C). In a bowl, mix together flour, baking powder, and salt. In another bowl, cream the butter and sugar until light and fluffy.

Add eggs one at a time, then mix in vanilla. Gradually add dry ingredients to the wet mixture, alternating with milk.

Bake the Cake

Divide the batter evenly between two greased and floured 9-inch round cake pans. Bake for 25-30 minutes or until a toothpick inserted comes out clean. Let the cakes cool in the pans for 10 minutes before transferring them to a wire rack to cool completely.

Prepare the Frosting

In a bowl, beat together softened butter and powdered sugar until smooth. Add vanilla and milk, mixing until you achieve a spreadable consistency.

Assemble the Cake

Once the cakes are fully cooled, place one layer on a serving plate. Spread a generous amount of frosting on top, then place the second layer on top and frost the top and sides of the cake. Decorate as desired.

Allow the cake to set for at least 30 minutes before slicing for the best presentation.

Storing Your Cake

To keep your Copycat Costco Vanilla Cake fresh, store it in an airtight container at room temperature for up to three days. If you need to keep it longer, consider refrigerating it. However, be aware that chilling can alter the texture slightly, so it’s best enjoyed at room temperature.

If you have leftover cake, you can also freeze it. Wrap each layer tightly in plastic wrap and then aluminum foil to prevent freezer burn. When you're ready to enjoy it again, simply thaw it in the refrigerator overnight and bring it to room temperature before serving.

Serving Suggestions

This cake is delightful on its own, but there are plenty of delicious ways to serve it. Consider adding a scoop of vanilla ice cream or a dollop of whipped cream alongside each slice for an extra indulgent treat. Fresh berries or a berry compote can also elevate the flavor profile, adding a fruity contrast to the sweet vanilla.

For special occasions, try layering the cake with fresh fruit or filling it with jam between the layers. This not only enhances the taste but also adds a beautiful visual element. With these serving suggestions, your Copycat Costco Vanilla Cake will shine at any gathering!

Variations to Try

While the classic vanilla flavor is a fan favorite, you can easily experiment with different flavors. Adding lemon zest or almond extract can provide unique flavor twists that keep your cake exciting. For chocolate lovers, consider swirling in some cocoa powder or even adding chocolate chips to the batter for a delightful surprise.

You can also create a layered cake by splitting the batter into three or four layers, alternating flavors or fillings between each layer. This not only adds variety but also creates a stunning presentation. No matter how you customize it, this cake is sure to impress!

Questions About Recipes

→ Can I make this cake ahead of time?

Yes, you can bake the cake layers a day in advance. Store them tightly wrapped at room temperature.

→ What can I use instead of whole milk?

You can substitute with buttermilk or any non-dairy milk for a dairy-free option.

→ How can I make this cake chocolate?

Substitute 1 cup of flour with cocoa powder for a chocolate version.

→ How should I store the cake?

Keep the cake covered at room temperature for up to 3 days or refrigerate for up to a week.