Amazing Peanut Butter Sheet Cake Recipe

Peanut Butter Sheet Cake has been my go-to dessert for years, a true crowd-pleaser that never fails to impress. I remember the first time I made it for a family reunion; the aroma of warm peanut butter and sugar filled my kitchen, and everyone was asking for the recipe before the cake even cooled! This easy peanut butter cake recipe delivers that classic, comforting flavor with a wonderfully moist crumb and a dreamy peanut butter frosting that’s simply irresistible. It’s the perfect dessert for birthdays, potlucks, or just a Tuesday when you need a little sweetness. Let’s get baking!

Why You’ll Love This Peanut Butter Sheet Cake

This isn’t just any dessert; it’s a shortcut to happiness! Here’s why this cake is about to become your new favorite:

• Incredibly Moist Texture: Thanks to a few simple tricks, this yields a consistently moist peanut butter sheet cake every single time.
• Effortless to Make: It truly lives up to its name as an easy peanut butter sheet cake. Minimal fuss, maximum reward!
• Crowd-Pleasing Flavor: The perfect balance of sweet and nutty makes it a hit with everyone, from kids to grandparents.
• Quick Prep Time: You can have this beauty in the oven in under 20 minutes, perfect for unexpected guests.
• Versatile Frosting: The creamy peanut butter frosting is divine, but it also pairs wonderfully with chocolate or a simple glaze.
• Sheet Pan Simplicity: Baking in a sheet pan means more cake and less cleanup – a win-win!
• Pure Peanut Butter Bliss: If you’re a peanut butter fanatic, this cake is your ultimate dream dessert.

Ingredients for Homemade Peanut Butter Sheet Cake

Gather these simple ingredients to create your delicious homemade peanut butter sheet cake. The key to its amazing texture lies in the quality and combination of these items, especially for the frosting.

• 1 cup creamy peanut butter – the star flavor, choose your favorite brand!
• 1 cup unsalted butter, softened – for richness and structure in the cake base.
• 2 cups granulated sugar – provides sweetness and helps create a tender crumb.
• 4 large eggs – at room temperature, they incorporate better into the batter.
• 1 tsp vanilla extract – enhances all the flavors, especially the peanut butter.
• 2 cups all-purpose flour – the foundation of our cake structure.
• 1 tsp baking powder – provides lift and a lighter texture.
• 1/2 tsp baking soda – reacts with acidic elements to help the cake rise.
• 1/2 tsp salt – balances the sweetness and brings out the peanut butter flavor.
• 1 cup buttermilk – adds moisture and a slight tang, making it a truly moist peanut butter sheet cake.
• For the Peanut Butter Frosting Sheet Cake Topping:
• 1/2 cup creamy peanut butter – more delicious peanut butter for that irresistible frosting.
• 1/2 cup unsalted butter, softened – creates a smooth, spreadable frosting base.
• 4 cups powdered sugar – for sweetness and that classic creamy frosting consistency.
• 1/4 cup milk (more if needed) – to achieve the perfect spreadable frosting texture.
• 1 tsp vanilla extract – for an extra layer of flavor in the frosting.

How to Make the Best Peanut Butter Sheet Cake

Follow these simple steps to create a truly unforgettable peanut butter cake baked in a sheet pan. This method ensures a wonderfully moist crumb and a perfectly baked cake every time.

1. Step 1: Preheat your oven to 350°F (175°C). Generously grease and flour a standard 13×18-inch sheet pan. This prevents sticking and ensures your classic peanut butter sheet cake comes out beautifully.
2. Step 2: In a large mixing bowl, cream together 1 cup creamy peanut butter, 1 cup softened unsalted butter, and 2 cups granulated sugar. Beat until the mixture is light, fluffy, and pale yellow. This process incorporates air, which is key for a tender cake.
3. Step 3: Add the 4 large eggs one at a time, beating well after each addition. Stir in 1 tsp vanilla extract until just combined.
4. Step 4: In a separate bowl, whisk together 2 cups all-purpose flour, 1 tsp baking powder, 1/2 tsp baking soda, and 1/2 tsp salt. This dry mixture ensures even leavening and seasoning.
5. Step 5: Now, let’s combine everything. Gradually add the dry ingredients to the peanut butter mixture, alternating with 1 cup buttermilk. Begin and end with the dry ingredients. Mix on low speed until just combined – be careful not to overmix! Overmixing can lead to a tough cake.
6. Step 6: Pour the luscious batter into your prepared sheet pan. Use a spatula to spread it evenly, ensuring it reaches all the corners. This is a crucial part of how to make peanut butter sheet cake successfully.

7. Step 7: Bake for 25–30 minutes, or until a wooden toothpick inserted into the center of the cake comes out clean. The aroma of warm peanut butter filling your kitchen is your cue!
8. Step 8: Let the cake cool completely in the pan on a wire rack before frosting. Patience here is rewarded with a perfectly set cake, ready for its delicious topping.
9. Step 9: While the cake cools, prepare the frosting. In a medium bowl, beat 1/2 cup creamy peanut butter and 1/2 cup softened unsalted butter until smooth.
10. Step 10: Gradually add 4 cups powdered sugar and 1/4 cup milk, mixing until the frosting is creamy and spreadable. You might need a little more or less milk depending on humidity. Stir in 1 tsp vanilla extract.
11. Step 11: Once the cake is completely cool, spread the creamy peanut butter frosting evenly over the entire surface. Cut into squares and prepare for pure peanut butter perfection!

Pro Tips for the Perfect Peanut Butter Sheet Cake

Elevate your baking game with these simple tricks for an absolutely perfect peanut butter sheet cake every time. These tips ensure a delicious outcome, whether you’re a beginner or a seasoned baker.

• Always use room temperature ingredients, especially the eggs and butter. This helps them emulsify better, creating a smoother batter and a more tender crumb.
• Don’t overmix the batter once the flour is added. Mix just until the streaks of flour disappear to avoid developing the gluten too much, which can make the cake tough and less moist.
• Ensure the cake is completely cool before frosting. Frosting a warm cake will cause the frosting to melt and slide off, creating a mess.

What’s the secret to a perfect Peanut Butter Sheet Cake?

The secret to a truly perfect and moist peanut butter sheet cake lies in the balance of ingredients. Using buttermilk adds moisture and a slight tang, while not overmixing the batter ensures a tender crumb. The combination of peanut butter and butter in both the cake and frosting is key to that irresistible flavor. For more on baking science, check out King Arthur Baking’s ingredient properties.

Can I make this Easy Peanut Butter Sheet Cake ahead of time?

Absolutely! This easy peanut butter sheet cake is a fantastic make-ahead option. You can bake the cake one day in advance and store it at room temperature, unfrosted, wrapped tightly in plastic wrap. Prepare the frosting separately and store it in the refrigerator, then bring it to room temperature before spreading on the cooled cake. You can learn more about make-ahead baking on King Arthur Baking’s blog.

How do I avoid common mistakes with Peanut Butter Sheet Cake?

To avoid common pitfalls with your peanut butter sheet cake, be sure to measure your flour correctly – spoon it into the cup and level it off. Also, resist the urge to overbake; a toothpick should come out with moist crumbs, not wet batter. Finally, let the cake cool completely before frosting to prevent a melty mess. For more baking tips, visit King Arthur Baking’s tips section.

Best Ways to Serve Peanut Butter Sheet Cake for a Crowd

This delightful peanut butter sheet cake is perfect for feeding a crowd, and there are so many ways to make it shine! For a classic treat, simply cut it into generous squares and serve as is. The rich peanut butter flavor is satisfying on its own. If you’re looking for a delightful pairing, consider serving slices alongside a scoop of vanilla bean ice cream; the cold creaminess beautifully complements the cake’s texture.

For those who adore a double dose of chocolate and peanut butter, imagine this cake as the base for a decadent chocolate peanut butter sheet cake. You could drizzle melted chocolate over the peanut butter frosting, or even serve it with a side of rich chocolate pudding. It also pairs wonderfully with fresh berries like raspberries, whose tartness cuts through the sweetness. This dessert is truly versatile and always a showstopper!

Nutrition Facts for Peanut Butter Sheet Cake

Here’s a breakdown of the estimated nutritional information per serving for this delightful peanut butter cake baked in a sheet pan. It’s a rich and satisfying treat!

• Calories: 420
• Fat: Approximately 22g
• Saturated Fat: Approximately 8g
• Protein: 6g
• Carbohydrates: 50g
• Fiber: 2g
• Sugar: Approximately 35g
• Sodium: Approximately 200mg

Nutritional values are estimates and may vary based on specific ingredients used. For more information on nutrition, you can check out MyFitnessPal.

How to Store and Reheat Peanut Butter Sheet Cake

Proper storage is key to keeping your simple peanut butter sheet cake fresh and delicious. Once the cake has completely cooled in the pan, you can frost it. For short-term storage, cover the cake tightly with plastic wrap or transfer it to an airtight container. This helps prevent it from drying out. Stored this way at room temperature, it will stay delightful for about 2 to 3 days.

If you need to store it for longer, the refrigerator is your best bet. Cover it well and it should last for up to 4 to 5 days. For even longer storage, this peanut butter cake freezes beautifully! Let it cool completely, then wrap it tightly in plastic wrap followed by a layer of aluminum foil. It can be frozen for up to 3 months. When you’re ready to enjoy a slice, thaw it overnight in the refrigerator. For a quick reheat, you can gently warm individual slices in the microwave for about 10-15 seconds.

Frequently Asked Questions About Dessert Peanut Butter Sheet Cake

What is peanut butter sheet cake?

A peanut butter sheet cake is essentially a classic cake recipe baked in a large rectangular pan, or sheet pan. It’s known for its rich peanut butter flavor and often features a creamy peanut butter frosting. This type of cake is designed for easy serving and is perfect for gatherings because you can cut it into many squares, making it a wonderfully convenient dessert.

Why is peanut butter sheet cake so popular?

This dessert peanut butter sheet cake is incredibly popular for several reasons! Firstly, peanut butter is a universally loved flavor that evokes comfort and nostalgia for many. Secondly, its sheet pan format makes it incredibly easy to bake and serve to large groups without much fuss. The combination of a moist, flavorful cake and a sweet, creamy frosting is simply irresistible, turning an ordinary gathering into a special occasion.

Can I add chocolate to my peanut butter sheet cake?

Absolutely! Adding chocolate is a fantastic way to enhance this dessert. You can incorporate chocolate chips into the cake batter itself, or for a truly decadent experience, try a peanut butter sheet cake with chocolate frosting. A swirl of melted chocolate over the peanut butter frosting or serving it with a side of chocolate sauce also works beautifully. It creates a delicious chocolate peanut butter sheet cake combination.

What are some peanut butter sheet cake variations?

There are many fun peanut butter sheet cake variations! You could make a gluten-free version using a good quality gluten-free flour blend, or a dairy-free version by using dairy-free butter alternatives and milk. For a richer flavor, try adding a tablespoon of unsweetened cocoa powder to the batter to create a chocolate peanut butter sheet cake. Some people also love a glazed peanut butter sheet cake, using a simple powdered sugar glaze instead of a thicker frosting.

Peanut Butter Sheet Cake Variations You Can Try

Looking to shake things up? These peanut butter sheet cake variations offer exciting twists on the classic, ensuring there’s a perfect version for everyone. Whether you have dietary needs or just crave a new flavor profile, these ideas are sure to inspire your next bake.

• Dietary Adjustments: For a gluten-free treat, swap out the all-purpose flour for a 1:1 gluten-free baking blend. You can also make it dairy-free by using plant-based butter and milk alternatives. Both options still result in a fantastic peanut butter cake baked in a sheet pan.
• Flavor Boosts: Want to deepen the flavor? Add 1-2 tablespoons of unsweetened cocoa powder to the dry ingredients for a delightful chocolate-peanut butter swirl cake. A touch of cinnamon or espresso powder also complements the peanut butter beautifully.
• Frosting Fun: Beyond the classic peanut butter frosting, try a cream cheese frosting for a tangy contrast, or a simple chocolate ganache drizzle. For a lighter option, a thin glaze made with powdered sugar and milk works wonders.
• Spice it Up: Incorporate warming spices like cinnamon or nutmeg into the dry ingredients for a cozy, spiced peanut butter cake. This adds a wonderful depth that is perfect for cooler months.

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