Peanut Butter Sheet Cake with Peanut Butter Frosting

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Alright, folks, if you’re a peanut butter lover like me, you’re about to be absolutely blown away by this Peanut Butter Sheet Cake with Peanut Butter Frosting. Trust me, this one is a total game-changer! Imagine a soft, moist cake that’s packed with rich peanut butter flavor, topped off with the most dreamy, creamy frosting you could ever ask for. It’s like your favorite peanut butter cup but in cake form, and let me tell you, it’s even better. You’ll find yourself sneaking bites when no one’s looking—and let’s be honest, you’ll want to make this one over and over again.

Why You’ll Love Peanut Butter Sheet Cake with Peanut Butter Frosting

This recipe isn’t just a cake; it’s an experience. Whether you’re celebrating a birthday, need a treat to bring to a gathering, or just want something indulgent to enjoy with a cup of coffee, this cake is perfect for any occasion. Here’s why it’s a favorite:

  • Versatile: A go-to dessert for any occasion, from casual family dinners to big celebrations. You can also make it as a treat for friends—just watch the compliments roll in!
  • Budget-Friendly: You’ll find most of these ingredients in your kitchen already, which makes it both easy and affordable. Who doesn’t love that?
  • Quick and Easy: With simple steps and easy-to-find ingredients, this cake comes together faster than you can say “peanut butter.” Even if you’ve never baked a sheet cake before, you’ll feel like a pro.
  • Crowd-Pleasing: No one can resist that peanut butter flavor. Kids and adults alike will devour it, and it’s a great way to keep everyone happy.
  • Frosting for Days: The frosting is the perfect finishing touch. It’s rich, creamy, and just the right amount of sweetness to balance the cake. Seriously, you might find yourself spreading it generously (and I’m not even mad about it).

Ingredients in Peanut Butter Sheet Cake with Peanut Butter Frosting

Let’s talk about what goes into this glorious cake:

  • Cake Flour: For a soft and fluffy texture. It’s the secret to making the cake tender and light.
  • Baking Powder: Helps the cake rise to perfection.
  • Salted Butter: This gives the cake its richness and flavor. You’ll love the buttery goodness in every bite.
  • Granulated Sugar: For sweetness. It balances out the peanut butter without overpowering the flavor.
  • Peanut Butter: The star of the show. We’re talking creamy, nutty peanut butter that infuses the cake with its delicious flavor.
  • Eggs: To help bind everything together and create a fluffy, moist cake.
  • Milk: Adds moisture and helps achieve the perfect cake batter consistency.
  • Vanilla Extract: A splash of vanilla enhances the peanut butter flavor, making it even more irresistible.

And for the frosting:

  • Powdered Sugar: Gives the frosting its sweetness and smooth texture.
  • Peanut Butter: Yes, more peanut butter! This is what makes the frosting so creamy and flavorful.
  • Butter: Adds richness and helps create a smooth, spreadable texture.
  • Vanilla Extract: To make the frosting even more delicious.
  • Milk: Helps get the frosting to the perfect consistency.

(Note: The full list of ingredients with measurements is in the recipe card below!)

Instructions

Let’s make this Peanut Butter Sheet Cake with Peanut Butter Frosting come to life!

Preheat the Oven

First things first, preheat your oven to 350°F (175°C) to make sure it’s nice and hot when you pop your cake in. This ensures the cake bakes evenly and perfectly every time.

Make the Cake Batter

In a medium bowl, whisk together the flour, baking powder, and salt. In a separate, larger bowl, cream together the butter, granulated sugar, and peanut butter until it’s light and fluffy. Add in the eggs one at a time, mixing well after each addition. Stir in the milk and vanilla extract, followed by the dry ingredients. Mix until everything is just combined (you don’t want to overmix!).

Bake the Cake

Grease a 9×13-inch baking dish with butter or non-stick spray, and pour in the cake batter. Smooth it out into an even layer and bake for 30-35 minutes, or until a toothpick inserted into the center comes out clean.

Make the Frosting

While the cake is cooling, it’s frosting time! In a large bowl, beat together the peanut butter, butter, powdered sugar, and vanilla extract. Add in a little milk at a time until the frosting reaches your desired consistency—it should be smooth and spreadable.

Frost the Cake

Once the cake is fully cooled, generously spread the frosting over the top. Don’t be shy with the frosting; you’ll want every bite to be as rich as the last.

Serve and Enjoy

Slice into this peanut butter perfection, and watch as everyone dives in. The cake is soft, the frosting is creamy, and the flavor is just out of this world. Enjoy with a glass of milk, and savor every bite.

How to Serve Peanut Butter Sheet Cake with Peanut Butter Frosting

  • With a glass of milk: This cake was practically made for milk! The peanut butter and milk combo is simply irresistible.
  • Add a scoop of ice cream: Vanilla ice cream works great with the peanut butter flavor—totally indulgent.
  • Fresh fruit: A side of berries or banana slices adds a fresh, light contrast to the richness of the cake.
  • For a crowd: Serve it straight from the pan for easy, no-fuss entertaining. Everyone will love it.

Additional Tips

  • Prep Ahead: Bake the cake the day before and store it in an airtight container. Frost it just before serving to keep the texture perfect.
  • Storage Tips: Store leftovers (if there are any!) in an airtight container at room temperature for up to 3 days. You can also refrigerate it for up to 5 days.
  • Make it Your Own: Feel free to experiment! You could add chocolate chips to the cake batter for a chocolate-peanut butter twist.

FAQ Section

Q1: Can I use crunchy peanut butter instead of creamy?
A1: Absolutely! It will add a little extra texture, which is great if you love some crunch in your cake.

Q2: Can I make this cake ahead of time?
A2: Yes! You can bake the cake and store it at room temperature for a day or two. Just make sure it’s completely cooled before you frost it.

Q3: Can I freeze this cake?
A3: You sure can! Wrap it tightly in plastic wrap and foil, and freeze for up to 3 months. Let it thaw at room temperature, then frost and serve.

Q4: Can I use a different frosting?
A4: Of course! If you prefer chocolate frosting, that would pair wonderfully with the peanut butter cake.

Q5: Can I make this gluten-free?
A5: Yes! Just swap out the cake flour for a gluten-free flour blend, and make sure all your other ingredients are gluten-free.

Q6: How do I know when the cake is done?
A6: Check with a toothpick! Insert it in the center of the cake, and if it comes out clean, it’s ready.

Q7: How can I make the frosting smoother?
A7: If the frosting is too thick, add a little more milk until it reaches your desired consistency.

Q8: What should I do if my cake sticks to the pan?
A8: To prevent this, make sure you grease your baking dish well, or line it with parchment paper before adding the batter.

Q9: Can I double the recipe?
A9: Definitely! Just use a larger baking dish and adjust the baking time as needed.

Q10: What is the best way to store this cake?
A10: Keep it in an airtight container at room temperature for a couple of days, or refrigerate it for up to 5 days.

Conclusion

This Peanut Butter Sheet Cake with Peanut Butter Frosting is absolutely to die for. Whether you’re baking it for a special occasion or just treating yourself (because you deserve it!), it’s bound to be a crowd-pleaser. Give it a try, and you’ll see why peanut butter fans everywhere are going crazy for this cake. Enjoy every bite, my friend!

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Peanut Butter Sheet Cake with Peanut Butter Frosting

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This Peanut Butter Sheet Cake with Peanut Butter Frosting is the ultimate dessert for peanut butter lovers! The moist, rich cake paired with creamy peanut butter frosting will have everyone asking for seconds. Perfect for birthdays, potlucks, or a special treat

  • Prep Time: 10 minutes
  • Cook Time: 40 minutes
  • Total Time: 50 minutes + cooling time
  • Yield: 1215 servings 1x
  • Category: Dessert
  • Method: Baking
  • Cuisine: American
  • Diet: Halal

Ingredients

Scale
  1. For the Cake:
    • 1 box yellow cake mix
    • 4 eggs
    • ½ cup softened butter
    • 1 cup water
    • ½ cup creamy peanut butter

    For the Frosting:

    1. 3 cups confectioners’ sugar
    2. ½ cup creamy peanut butter
    3. ½ cup softened butter
    4. 2+ tablespoons milk (adjust for consistency)
    5. 1 teaspoon pure vanilla extract

Instructions

  • Preheat the Oven: Preheat the oven to 325°F (163°C). Lightly grease a 9×13-inch baking pan and set aside.
  • Prepare the Cake: In a large bowl, use an electric mixer to cream together the softened butter and peanut butter until smooth. Add the eggs, cake mix, and water. Beat on medium speed for 2 minutes until the batter is smooth. Pour the batter into the prepared baking pan.
  • Bake the Cake: Bake for 40 minutes or until a toothpick inserted into the center comes out clean. Let the cake cool completely before frosting.
  • Prepare the Frosting: In a separate bowl, cream together the softened butter and peanut butter until well combined. Gradually add the confectioners’ sugar, vanilla extract, and 2 tablespoons of milk. Mix until the frosting is light and fluffy. If the frosting is too thick, add more milk to achieve the desired consistency.
  • Frost the Cake: Once the cake has cooled, spread the peanut butter frosting evenly over the cake.
  • Serve: Slice into 12-15 servings and enjoy!

Notes

  • You can adjust the sweetness of the frosting by adding more or less powdered sugar to taste.
  • The cake can be made a day ahead; just store it covered at room temperature.

Nutrition

  • Serving Size: 1 slice
  • Calories: ~450 kcal
  • Sugar: 35g
  • Sodium: 280mg
  • Fat: 25g
  • Saturated Fat: 8g
  • Unsaturated Fat: 15g
  • Trans Fat: 0g
  • Carbohydrates: 50g
  • Fiber: 2g
  • Protein: 5g
  • Cholesterol: 60mg

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