Are you craving a slice of pure nostalgia? This dreamy white sheet cake with rich vanilla frosting is exactly what you need! The white sheet cake is a timeless classic that brings back childhood memories while satisfying your sweet tooth. Whether you’re celebrating a birthday or simply want to treat yourself “just because,” this recipe delivers a moist, tender cake that tastes like a fancy box mix but so much better!
I’m thrilled to share this recipe with you today because once you try it, it’ll become your go-to celebration cake. The combination of cake flour, sour cream, and clear vanilla extract creates a delicate crumb that’s reminiscent of those special occasion cakes from your childhood, but with a homemade touch that makes all the difference.
Why You’ll Fall in Love with This White Sheet Cake
There’s something magical about a perfectly executed white sheet cake. It’s simple yet sophisticated, humble yet impressive. This recipe strikes the perfect balance between ease and elegance, making it suitable for both novice bakers and experienced pastry enthusiasts.
The smell when this cake is baking in the oven is absolutely incredible! Your entire home will be filled with the sweet aroma of vanilla and buttery goodness. Furthermore, the texture is spot-on – moist and tender with a fine crumb that melts in your mouth.
What makes this white sheet cake truly special is its versatility. You can dress it up with colorful sprinkles for a birthday celebration or keep it elegant with a smooth layer of frosting for a more sophisticated gathering. Additionally, you can adapt the flavors with different extracts or add-ins to suit any occasion.
The vanilla frosting is equally impressive – silky, rich, and perfectly sweet without being cloying. When paired with the delicate cake, it creates a harmonious balance that will have everyone asking for seconds.
Ingredients You’ll Need for the Perfect White Sheet Cake
For the Cake Base:
- 115g butter, softened to room temperature
- 200g granulated sugar
- 3 large eggs
- 140g sour cream
- 80ml vegetable oil
- 12ml clear vanilla extract
- 245g cake flour
- 2 teaspoons baking powder
- 1.5 teaspoons salt
- 120ml whole milk
For the Vanilla Frosting:
- 230g butter, softened
- 440g powdered sugar
- 80ml heavy cream
- 1 teaspoon clear vanilla extract
- 0.5 teaspoon salt
- Rainbow sprinkles for decorating
Essential Tools for Baking Success
To ensure your white sheet cake turns out perfectly, gather these tools before starting:
- 9×13 inch baking pan
- Parchment paper
- Electric mixer (stand or hand mixer)
- Mixing bowls
- Rubber spatula
- Whisk
- Measuring cups and spoons
- Cooling rack
- Offset spatula for frosting
Ingredient Substitutions and Variations
Don’t have every ingredient on hand? No worries! This recipe is quite adaptable:
- Sour Cream: Greek yogurt makes an excellent substitute.
- Cake Flour: If you don’t have cake flour, you can make your own by replacing 2 tablespoons of all-purpose flour per cup with cornstarch.
- Clear Vanilla Extract: Regular vanilla extract works fine but may slightly tint your cake.
- Whole Milk: 2% milk will work in a pinch, though the cake may be slightly less rich.
- Heavy Cream: For the frosting, half-and-half can substitute, though the frosting won’t be quite as luxurious.
Want to add some flavor variations? Try these exciting options:
- Add almond extract alongside vanilla for a more complex flavor
- Fold in lemon zest for a bright, citrusy note
- Incorporate white chocolate chips into the batter
- Try sautéed mushrooms as a savory side dish to balance the sweet meal

Step-by-Step Cooking Instructions
Pre-Baking Preparation
First, preheat your oven to 350°F (175°C). This ensures your oven reaches the proper temperature before the cake goes in. Next, prepare your 9×13 inch pan by greasing it thoroughly and lining with parchment paper. The parchment creates a sling that makes removing the cake super easy.
Allow your butter, eggs, and dairy ingredients to come to room temperature before beginning. Room temperature ingredients incorporate much better than cold ones, resulting in a smoother batter and more uniform cake.
Making the Cake Batter
Start by beating the softened butter and sugar together until light and fluffy, about 3 minutes. Don’t rush this step! This process, called creaming, incorporates air into the batter which helps the cake rise properly.
Add the eggs one at a time, mixing well after each addition. Then, mix in the sour cream, vegetable oil, and clear vanilla extract until fully incorporated. The mixture may look slightly curdled, but don’t worry – that’s completely normal.
In a separate bowl, whisk together the cake flour, baking powder, and salt. Alternating between the dry ingredients and milk, add them to the butter mixture in three parts, beginning and ending with the dry ingredients. Mix just until combined – overmixing will develop too much gluten, resulting in a tougher cake.
Pour the batter into your prepared pan and smooth the top with a spatula. Tap the pan gently on the counter a few times to release any air bubbles.
Baking to Perfection
Bake for 30-35 minutes, or until a toothpick inserted into the center comes out clean with just a few crumbs attached. The cake should be lightly golden on top and just starting to pull away from the sides of the pan.
Allow the cake to cool in the pan for about 10 minutes, then use the parchment paper sling to carefully lift it out and transfer to a cooling rack. Let it cool completely before frosting – this typically takes about 1-2 hours.
Creating the Silky Vanilla Frosting
For the frosting, beat the softened butter in a large bowl until creamy and smooth, about 2 minutes. Gradually add the powdered sugar, alternating with heavy cream, beating well after each addition. Add the clear vanilla extract and salt, then beat on medium-high speed for about 5 minutes until the frosting is incredibly light and fluffy.
The key to perfect frosting is adequate mixing time – don’t skimp on those 5 minutes of beating! It incorporates air into the frosting, making it silky smooth and easier to spread.
What to Serve with White Sheet Cake
This versatile cake pairs beautifully with:
- Fresh berries
- Vanilla or strawberry ice cream
- A hot cup of coffee or tea
- A glass of cold milk
- Whipped cream
For a complete dinner featuring this dessert, consider serving it after a hearty meal like keto chicken casserole or luxurious lobster with garlic cream sauce for a celebratory dinner.
Pro Tips for White Sheet Cake Success
- Use room temperature ingredients to ensure proper emulsification and a tender crumb.
- Don’t overmix the batter once you’ve added the flour – this develops gluten and can make your cake tough.
- Invest in clear vanilla extract for that classic white cake look and flavor.
- Measure flour correctly by spooning it into measuring cups rather than scooping, which compacts it.
- Add a pinch of salt to your frosting to balance the sweetness and enhance the vanilla flavor.
- Allow the cake to cool completely before frosting to prevent melting.
- For easy cutting, chill the frosted cake for 15-20 minutes before serving.
- Store leftover cake properly to maintain moisture (see storage tips below).
- For extra-special occasions, double the frosting recipe for an ultra-thick layer.
- Don’t forget the sprinkles! They add fun texture and visual appeal.
Storage Instructions
This white sheet cake stays fresh at room temperature in an airtight container for up to 3 days. For longer storage, refrigerate for up to a week – just bring slices to room temperature before serving for the best flavor and texture.
You can also freeze unfrosted cake for up to 3 months. Wrap it tightly in plastic wrap, then foil. Thaw overnight in the refrigerator before frosting and serving.
Nutritional Information
Per serving (based on 15 slices):
- Calories: 420
- Fat: 25g
- Carbohydrates: 48g
- Protein: 3g
- Sodium: 350mg
- Sugar: 35g
White Sheet Cake: A Timeless Classic
White sheet cake has been a beloved staple at American celebrations for generations. Its origins trace back to traditional European butter cakes, but the modern sheet cake format gained popularity in the mid-20th century when home baking became more accessible.
What makes sheet cakes so enduringly popular is their practicality – they’re easier to transport than layer cakes, simpler to cut and serve to a crowd, and provide the perfect ratio of cake to frosting in every bite.
I absolutely love this recipe because it captures that nostalgic boxed cake mix flavor we all remember from childhood, but with the superior texture and depth of flavor that only comes from scratch baking. It’s truly the best of both worlds!
Be sure to share your creations on Pinterest so others can be inspired by your baking success!
Frequently Asked Questions
Why is my cake dry?
The most common cause is overbaking. Check your cake 5 minutes before the suggested baking time, as every oven is different. Also, be sure to measure your flour correctly to avoid adding too much.
Can I make this cake ahead of time?
Absolutely! You can bake the cake up to 2 days in advance, wrap it well, and store at room temperature. Frost it the day you plan to serve for best results.
Why use clear vanilla extract?
Clear vanilla helps maintain the pristine white color of the cake. Regular vanilla will taste delicious but may add a slight tan tint.
Can I turn this into cupcakes?
Yes! This recipe will make about 24 cupcakes. Bake at the same temperature for 18-22 minutes.
Do I really need cake flour?
Cake flour produces the most tender result, but you can substitute all-purpose flour if necessary. Your cake will be slightly more dense but still delicious.
The Perfect White Sheet Cake for Any Occasion
There’s something truly special about pulling a freshly baked white sheet cake from the oven and watching loved ones’ faces light up when you serve it. The combination of tender, vanilla-scented cake and creamy frosting creates an irresistible dessert that’s perfect for birthdays, potlucks, family gatherings, or simply satisfying a sweet craving.
What I love most about this recipe is how it elevates a simple concept into something extraordinary. The careful balance of ingredients creates a cake that’s moist without being heavy, sweet without being cloying, and impressive without being complicated.
So go ahead – preheat that oven, gather your ingredients, and treat yourself and your loved ones to a slice of homemade happiness. This white sheet cake isn’t just dessert; it’s a way to create warm memories that last long after the last crumb is gone.