There’s something magical about the aroma of freshly baked cake wafting through the house, isn’t there? It brings back memories of cozy afternoons spent in the kitchen, with flour dusting the countertops and a comforting sense of warmth wrapping around like a hug. Among my favorite bakes is the beloved Peanut Butter Sheet Cake with Fluffy Peanut Butter Frosting. Oh, let me tell you—this cake is essentially a love letter to peanut butter lovers everywhere.
Every time I make this delightful treat, I’m flooded with nostalgia, reminiscent of carefree, sunlit days where dessert was a centerpiece at family gatherings. The beautifully moist cake paired with that ridiculously fluffy frosting? Absolute perfection. Whether you’re celebrating a birthday, hosting a casual get-together, or just need a sweet escape, this sheet cake delivers all the joy and comfort we crave.
Why You’ll Love This Recipe
- Super easy and quick to whip up—perfect for weeknight baking!
- Moist, fluffy, and utterly delicious.
- Budget-friendly ingredients that you likely have in your pantry.
- A crowd-pleaser that’s perfect for any occasion.
Ingredients
Here’s what you’ll need to create this delightful Peanut Butter Sheet Cake:
- For the Cake:
- 2 cups all-purpose flour (spooned and leveled)
- 1 ½ cups granulated sugar
- ½ cup unsweetened cocoa powder (for a touch of richness, optional)
- 1 tablespoon baking powder
- ½ teaspoon baking soda
- ¼ teaspoon salt
- 1 cup creamy peanut butter (the kind that spreads like a dream)
- 1 cup milk (whole milk gives the best results)
- ½ cup vegetable oil
- 3 large eggs (room temperature helps them mix in better)
- 2 teaspoons vanilla extract (pure is the way to go!)
- ½ cup hot water (the magic ingredient that makes the cake moist)
- For the Frosting:
- 1 cup creamy peanut butter
- ½ cup unsalted butter (softened)
- 4 cups powdered sugar (sifted for smoothness)
- ¼ cup milk (to adjust consistency)
- 1 teaspoon vanilla extract
Step-by-Step Instructions
Ready to bring this recipe to life? Let’s do it!
- Preheat your oven: Preheat your oven to 350°F (175°C). Grease and flour a 13×18 inch sheet pan. You want it ready for action!
- Mix the dry ingredients: In a large bowl, sift together the flour, granulated sugar, cocoa powder (if using), baking powder, baking soda, and salt. Ah, feel that familiar comforting scent already!
- Blend the wet ingredients: In another bowl, whisk together the peanut butter, milk, vegetable oil, eggs, and vanilla until smooth and creamy. Make sure to blend it well so there are no lumps. Remember, lumpy batter = lumpy cake.
- Combine: Gently fold the wet ingredients into the dry ingredients. Be careful not to overmix. A few little flour streaks are okay! Overmixing will lead to a dense cake, so treat your batter with care.
- Add the hot water: Slowly stir in the hot water. This is where the magic happens! The batter will thin out, and that’s exactly what we want. It’ll help create a super moist cake.
- Pour and bake: Pour the batter into the prepared sheet pan and spread it evenly. Bake in the preheated oven for 25–30 minutes, or until a toothpick inserted in the center comes out clean. The aroma will fill your kitchen! Trust me; it’s heavenly.
- Cool it down: Once baked, remove the cake from the oven and let it cool completely in the pan on a wire rack. Patience! The frosting needs to wait for a cool canvas.
- Make the frosting: In a mixing bowl, cream together the peanut butter and softened butter until smooth. Add the sifted powdered sugar, vanilla, and enough milk to reach your desired consistency. You want it fluffy and spreadable—with a hint of sweetness that sings!
- Frost away: Spread the fluffy peanut butter frosting all over the cooled cake. Get creative with swirls and peaks; it’s all part of the fun!
Pro Tips & Variations
Let’s sprinkle some fun ideas to elevate your cake experience:
- Nuts & Berries: Add some chopped peanuts or even chocolate chips into the batter for delightful texture! Or top your frosted cake with fresh strawberries for a lovely contrast.
- Chocolate Frosting: If you’re feeling adventurous, swap some of the peanut butter for cocoa powder in the frosting to create a chocolate-peanut butter dream.
- Make It Gluten-Free: Substitute the all-purpose flour with a 1:1 gluten-free flour blend and enjoy a delicious gluten-free treat!
- Spice It Up: A pinch of cinnamon or even a dash of espresso powder in the cake batter can enhance the flavor profile beautifully. Don’t be afraid to experiment!
Serving Suggestions
This cake is as versatile as your favorite sweater. Serve it as is for coffee breaks, or garnish each slice with a dollop of whipped cream and a sprinkle of crushed peanuts for a fancy touch. It pairs wonderfully with a glass of cold milk or even a hot cup of coffee. Imagine sharing a slice with friends, laughter filling the air while that light, fluffy frosting melts in your mouth. Absolute bliss!
Storage Tips
You’ll want to savor this cake for as long as possible, right? Here’s how to keep it fresh:
- Refrigerating: Store in an airtight container in the fridge for up to a week. Trust me; it actually gets better as it sits!
- Freezing: You can freeze the unfrosted cake for up to three months. Just wrap it tightly in plastic wrap and then aluminum foil. To thaw, place it in the fridge overnight.
- Reheating: If you want to enjoy it warm, microwave individual slices for about 10-15 seconds. This revives that fabulously moist texture.
FAQs
Can I use natural peanut butter for the cake?
Absolutely! Just keep in mind that natural peanut butter can be a bit oilier, which might slightly affect the texture. Enjoy experimenting!
How can I make my frosting fluffier?
The key is really creaming the peanut butter and butter together thoroughly. Be patient and mix until it’s smooth and airy. Adding a bit of extra milk can also help if it’s too thick.
Can I replace granulated sugar with a sugar substitute?
Sure, feel free to use a favorite sugar alternative. Just double-check that it can be used in baking, as some don’t work quite right in cakes.
Why did my cake sink in the middle?
Oh no! A sinking cake is often a sign that it was underbaked or that it was overmixed. Make sure to check the doneness with a toothpick and avoid overmixing the batter!
Conclusion
And just like that, you’ve created a fabulous Peanut Butter Sheet Cake with Fluffy Peanut Butter Frosting that’s sure to impress! Remember, baking is all about having fun and sharing that joy with others. I would love to hear how yours turns out, so please drop me a comment or share your own tips and variations. Enjoy every luscious bite, and happy baking, my friend!
Print
Irresistible Peanut Butter Sheet Cake with Fluffy Frosting
- Total Time: 45 minutes
- Yield: 12 servings 1x
Description
Indulge in a moist peanut butter sheet cake topped with creamy fluffy frosting Perfect for any celebration or a sweet treat at home 155 chars
Ingredients
Instructions
Notes
A delightful Peanut Butter Sheet Cake topped with Fluffy Peanut Butter Frosting, perfect for any occasion.
- Prep Time: 15 minutes
- Cook Time: 30 minutes
- Category: Dessert
- Cuisine: American
Nutrition
- Serving Size: 12 servings
- Calories: 350
- Sugar: 35g
- Fat: 15g
- Carbohydrates: 52g
- Fiber: 2g
- Protein: 6g
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