Easy Copycat Costco Sheet Cake Recipe – Perfect for Dinner
Master the Art of Making Copycat Costco Sheet Cake Recipe
If you’ve ever indulged in the delightfully rich and fluffy Costco sheet cake, you know just how addictive it can be! Now, imagine being able to recreate that beloved dessert right in your own kitchen with this easy sheet cake recipe, perfect for parties or any gathering where you want to impress a crowd. This homemade version of the Costco sheet cake copycat captures all the flavors you love while being simple enough for even novice bakers to tackle. With just a few ingredients from your grocery store, you’ll have a delicious party dessert that everyone will rave about!
For a moist and flavorful copycat Costco sheet cake, be sure to cream the butter and sugar together until light and fluffy, and don’t skip the addition of sour cream in the batter for that signature richness!
Gather Your Ingredients & Tools

| Ingredient | Quantity | Notes |
|---|---|---|
| All-purpose flour | 3 cups | Essential for the base of this easy sheet cake; use for a homemade version of a Costco sheet cake copycat. |
| Sugar | 2 cups | Granulated sugar to sweeten the cake; a key ingredient for any crowd-pleasing dessert. |
| Baking powder | 1 tablespoon | Leavening agent for the cake; ensures a light and fluffy texture, perfect for a party dessert. |
| Salt | 1 teaspoon | Enhances the sweetness; a small but crucial addition for your grocery store copycat recipe. |
| Eggs | 4 large | Provides structure and moisture; vital for achieving that fluffy texture reminiscent of a Costco sheet cake. |
| Milk | 1 cup | Adds moisture to the batter; use whole milk for the best flavor in this homemade version. |
| Vanilla extract | 2 teaspoons | Brings depth of flavor; essential for a delicious easy sheet cake. |
| Vegetable oil | 1 cup | Keeps the cake moist; crucial for achieving a tender crumb in your crowd-pleaser recipe. |
Tips
- Replace the granulated sugar with coconut sugar for a lower glycemic index and a subtle caramel flavor.
- Allow the sheet cake to cool completely, then wrap individual slices in plastic wrap and store them in an airtight container to keep them fresh.
Essential tools: nonstick pan, medium pot, oven or air fryer, and a blender if needed.
These essentials keep the copycat costco sheet cake recipe balanced and consistent every time.
Additional notes: includes crowd pleaser for completeness.
How to Make Copycat Costco Sheet Cake Recipe Step by Step

- Preheat your oven to 350°F (175°C).
- Grease a large sheet cake pan with cooking spray or butter.
- In a large mixing bowl, combine 2 cups of all-purpose flour, 2 cups of granulated sugar, 1 ½ teaspoons of baking powder, 1 ½ teaspoons of baking soda, and 1 teaspoon of salt.
- In a separate bowl, whisk together 1 cup of buttermilk, ½ cup of vegetable oil, 2 large eggs, and 2 teaspoons of vanilla extract.
- Pour the wet ingredients into the dry ingredients and mix until just combined.
- Slowly add in 1 cup of boiling water, mixing until the batter is smooth.
- Pour the batter into the prepared sheet cake pan and spread it evenly.
- Bake in the preheated oven for 30-35 minutes or until a toothpick inserted into the center comes out clean.
- Once baked, remove the cake from the oven and let it cool in the pan for about 15 minutes.
- Transfer the cake to a wire rack to cool completely before frosting.
- For the frosting, beat together 1 cup of unsalted butter, 4 cups of powdered sugar, ¼ cup of heavy cream, and 2 teaspoons of vanilla extract until fluffy.
- Once the cake is cooled, generously frost the top with the prepared frosting.
- Optional: Decorate with sprinkles or fruit as desired.
- Slice and serve the cake to enjoy!
Chef tip: Season in layers and adjust to taste.
Flavor & Texture Secrets

| Flavor Element | Ingredient | Role |
|---|---|---|
| Vanilla | All-purpose flour | Base |
| Chocolate | Cocoa powder | Flavor |
| Frosting | Buttercream | Topping (homemade version) |
| Fruity | Mixed berries | Garnish (crowd pleaser) |
- Add-ins: herbs, spices, citrus zest, and dressings.
This fiber-rich combo makes it both filling and nutritious.
How to Serve Copycat Costco Sheet Cake Recipe

- Meal Prep: Prepare a week’s worth of healthy lunchboxes featuring quinoa salads and grilled chicken for easy grab-and-go options.
- Brunch: Delight guests with a mid-morning feast of fluffy pancakes, fresh fruit, and mimosas for a relaxing Sunday gathering.
- Family Dinner: Create a homestyle supper with a comforting casserole, roasted vegetables, and homemade garlic bread for a cozy night in.
| Occasion | Pairing Dish | Beverage |
|---|---|---|
| Birthday Party | Chocolate Cake | Red Velvet Wine |
| Romantic Dinner | Grilled Salmon | Sauvignon Blanc |
| Game Night | Buffalo Wings | Pale Ale |
Explore related ideas here: more recipes. This reinforces copycat costco sheet cake recipe enjoyment.
Serving Size Adjustments
| Ingredient | x1 | x2 | x4 |
|---|---|---|---|
| Base Grain | 1 cup | 2 cups | 4 cups |
| Protein | 1 serving | 2 servings | 4 servings |
| Veggies | 2 cups | 4 cups | 8 cups |
Scaling preserves the nutrition balance of copycat costco sheet cake recipe and its components (e.g., fiber/protein ratio). Try a batch cook for weeklong ease.
Allergy-Friendly & Diet Swaps
| Variant | Swap | Notes |
|---|---|---|
| Standard | As written | Balanced texture and flavor |
| Vegan | Use tofu or legumes | Plant protein emphasis |
| Gluten-Free | Use GF grains | Check labels for cross-contamination |
| Keto | Swap grains for greens | Keep fats moderate |
- Swap smartly to maintain structure.
- Adjust seasoning to fit each variant.
This ensures copycat costco sheet cake recipe fits your dietary needs.
Troubleshooting: Common Mistakes to Avoid
- Issue: Difficulty in replicating the taste of Costco sheet cake — Fix: Try a homemade version using a simple recipe that includes almond extract for that signature flavor.
- Issue: Store-bought desserts can be expensive — Fix: Create a grocery store copycat recipe that mimics your favorite party dessert at a fraction of the cost.
- Issue: Sheet cakes can be time-consuming to make — Fix: Opt for an easy sheet cake recipe that requires minimal ingredients and time, perfect for last-minute gatherings.
- Issue: Finding a crowd pleaser for large events — Fix: Make a Costco sheet cake copycat that is guaranteed to satisfy guests and leave them wanting more.
Keep copycat costco sheet cake recipe balanced with mindful timing and seasoning.
Nutritional Highlights
| Calories | ~450 |
| Protein | ~20g |
| Carbs | ~55g |
| Fat | ~15g |
| Fiber | ~12g |
| Key Nutrients | Iron, Vitamin C, Folate |
- Fiber-packed and satiating.
- Protein-rich for recovery.
- Balanced bowl for daily energy.
Dietitian tip: Keep the copycat costco sheet cake recipe colorful and balanced for micronutrients.
Key Takeaways
- Main technique: build layers with copycat costco sheet cake recipe.
- Nutritional benefit: emphasize costco sheet cake copycat.
- Texture/taste: contrast crunchy and creamy elements.
- Serving flexibility: great for meal prep or sharing.
- Prep efficiency: use batch-cooked bases.
Faqs
- Q: How can I make a delicious Costco sheet cake copycat recipe at home?
If you’re craving the iconic Costco sheet cake but can’t make it to the store, try this easy copycat Costco sheet cake recipe! Combining a fluffy vanilla cake base with a rich buttercream frosting, this recipe captures the beloved flavors and textures of the original. Start with basic ingredients like flour, sugar, eggs, and vanilla, then top it with a vibrant frosting and sprinkles for that classic look. It’s perfect for any celebration or simply to satisfy
- Q: How can I make a grocery store copycat Costco sheet cake recipe at home?
If you’re craving the famous Costco sheet cake but can’t make it to the store, a copycat recipe can help you recreate that moist, fluffy goodness at home! This grocery store-inspired cake typically features a vanilla or chocolate base, paired with rich buttercream frosting and colorful sprinkles. Using simple ingredients like flour, sugar, eggs, and baking powder, you can whip up a deliciously large cake that’s perfect for any occasion, emulating the beloved
- Q: What is a simple way to recreate the beloved Costco sheet cake at home with an easy sheet cake recipe?
If you’re craving the iconic Costco sheet cake but want to whip it up at home, this copycat Costco sheet cake recipe is perfect for you! Featuring a moist and fluffy vanilla or chocolate base, it’s incredibly easy to make, often requiring just a few simple ingredients like flour, sugar, eggs, and butter. Top it off with a deliciously creamy frosting and festive sprinkles for that classic Costco touch. Ideal for parties or celebrations, this
- Q: How can I recreate a delicious copycat Costco sheet cake recipe for my next party dessert?
If you’re looking to recreate the beloved Costco sheet cake for your next party, this copycat recipe is a game-changer! Combining a moist vanilla cake base with a rich buttercream frosting, this dessert is not only visually appealing but also incredibly delicious. Perfect for feeding a crowd, you can customize the flavors and colors to match any celebration, making it an ideal centerpiece for birthdays or special events!
- Q: How can I make a crowd-pleaser copycat Costco sheet cake recipe at home?
If you’re looking to recreate the beloved Costco sheet cake at home, this copycat recipe is a surefire crowd-pleaser that captures the moist, fluffy texture and rich flavor of the original. With simple ingredients like cake mix, eggs, and a creamy frosting, you can whip up a delicious dessert that’s perfect for birthdays, gatherings, or just because. Impress your friends and family with this easy-to-follow recipe that brings the taste of
Copycat Costco Sheet Cake Recipe |
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|---|---|
| birthday-cake.site | |
| Love it? Save this recipe for future delicious moments! | |
| Preparation time: 30 minutes | Cooking time: 30 minutes | |
Ingredients |
|
| Ingredient | Amount |
| All-purpose flour | 3 cups |
| Sugar | 2 cups |
| Baking powder | 1 tablespoon |
| Salt | 1 teaspoon |
| Eggs | 4 large |
| Milk | 1 cup |
| Vanilla extract | 2 teaspoons |
| Vegetable oil | 1 cup |
Directions |
|
| Step 1: Preheat your oven to 350°F (175°C). | |
| Step 2: Grease a large sheet cake pan with cooking spray or butter. | |
| Step 3: In a large mixing bowl, combine 2 cups of all-purpose flour, 2 cups of granulated sugar, 1 ½ teaspoons of baking powder, 1 ½ teaspoons of baking soda, and 1 teaspoon of salt. | |
| Step 4: In a separate bowl, whisk together 1 cup of buttermilk, ½ cup of vegetable oil, 2 large eggs, and 2 teaspoons of vanilla extract. | |
| Step 5: Pour the wet ingredients into the dry ingredients and mix until just combined. | |
| Step 6: Slowly add in 1 cup of boiling water, mixing until the batter is smooth. | |
| Step 7: Pour the batter into the prepared sheet cake pan and spread it evenly. | |
| Step 8: Bake in the preheated oven for 30-35 minutes or until a toothpick inserted into the center comes out clean. | |
| Step 9: Once baked, remove the cake from the oven and let it cool in the pan for about 15 minutes. | |
| Step 10: Transfer the cake to a wire rack to cool completely before frosting. | |
| Step 11: For the frosting, beat together 1 cup of unsalted butter, 4 cups of powdered sugar, ¼ cup of heavy cream, and 2 teaspoons of vanilla extract until fluffy. | |
| Step 12: Once the cake is cooled, generously frost the top with the prepared frosting. | |
| Step 13: Optional: Decorate with sprinkles or fruit as desired. | |
| Step 14: Slice and serve the cake to enjoy! | |
Final Thoughts
copycat costco sheet cake recipe brings comfort and flavor to every table. Save and share your twist with fresh ideas and a mindful balance.
Pin this copycat costco sheet cake recipe and try your twist with homemade version today.

