Best Elvis Presley Cake with Easy Peanut Butter Frosting

The peanut butter jar was almost empty. I mean, the kind of empty where you’re scraping the sides with a rubber spatula, wondering if it’s worth the effort to get that last smear. It was a Thursday night, and I had promised to bring dessert to a friend’s potluck the next day. I had bananas on the counter, a box of yellow cake mix in the pantry, and honestly, zero interest in making another standard banana bread.

I remembered the Elvis Presley cake stories my grandmother used to tell. The King loved his peanut butter, banana, and bacon sandwiches. So, I thought, why not turn that flavor combo into a cake? I tossed the almost-empty peanut butter jar into the microwave with some butter, scraped every last bit out, and made a frosting that smelled like a dream. That cake disappeared faster than any other dish at the potluck. People were asking for the recipe before they even finished their first bite.

This isn’t just another cake. It’s a slice of rock-and-roll history, baked into something incredibly moist and ridiculously easy. If you want a dessert that feels special without requiring a culinary degree, this is it.

Why You’ll Love This Recipe

Let’s be honest, most cakes that claim to be “decadent” require a sink full of dishes and a whole afternoon. This one is different. It starts with a simple boxed cake mix, which keeps things stress-free, but the way we doctor it up makes it taste completely homemade. I’ve tested this version about five times now, tweaking the liquid ratio until the crumb was just right—tender, but sturdy enough to hold that thick peanut butter frosting.

• Incredibly Moist: The ripe bananas and sour cream in the batter guarantee a texture that stays soft for days (if it lasts that long).
• No Fancy Equipment: You just need a mixing bowl, a whisk, and a 9×13 pan. No stand mixer required.
• Crowd-Pleasing Flavor: It hits that sweet-and-salty note perfectly. Peanut butter lovers go crazy for it, and even folks who claim they “don’t like banana desserts” ask for seconds.
• Quick Assembly: From start to oven in about 15 minutes. It’s perfect for last-minute get-togethers or when you just need a comforting dessert on a random Tuesday.
• Better the Next Day: The flavors meld together overnight, making this an ideal make-ahead dessert. I actually prefer it on day two.

This recipe is the one that gets requested for birthdays, holidays, and “just because” dinners. It’s the kind of cake that makes you close your eyes after the first bite—pure, nostalgic comfort.

What Ingredients You Will Need

This recipe uses simple, wholesome ingredients to deliver bold flavor and satisfying texture without the fuss. Most of these are pantry staples, which is exactly what you want when a craving hits.

For the Cake

• 1 box (15.25 oz) yellow cake mix: I prefer Duncan Hines or Betty Crocker for consistent results. Do not use a “pudding in the mix” variety, as it changes the texture.
• 3 large eggs: Room temperature is best. If you forget, place them in a bowl of warm water for 5 minutes.
• 1/2 cup vegetable oil: Canola or melted coconut oil works too. Avoid olive oil—the flavor is too strong.
• 1 cup sour cream: This is the secret to the ultra-moist crumb. Full-fat gives the best texture, but Greek yogurt works in a pinch.
• 1 cup mashed ripe bananas: About 2 large bananas. The riper, the better. Those spotty ones sitting on your counter are perfect.
• 1 teaspoon vanilla extract: Pure vanilla adds depth, but imitation is fine here.

For the Peanut Butter Frosting

• 1/2 cup unsalted butter: Softened to room temperature. Salted butter will make the frosting too salty.
• 1 cup creamy peanut butter: I recommend Skippy or Jif for a stable, smooth frosting. Natural peanut butter (the kind that separates) will cause the frosting to be grainy and oily.
• 2 cups powdered sugar: Sifted if you want a silky-smooth finish, though I rarely bother.
• 1/4 cup whole milk: Start with 2 tablespoons and add more until you reach your desired consistency.
• 1 teaspoon vanilla extract: Enhances the peanut butter flavor beautifully.
• Pinch of salt: Only if using unsalted butter. It balances the sweetness.

Optional Toppings

• 1/2 cup chopped roasted peanuts: Adds a lovely crunch.
• 1/4 cup chocolate shavings or mini chocolate chips: Because Elvis would approve of the chocolate-peanut butter combo.
• Sliced fresh banana: For serving, not for storing (they turn brown).

Equipment Needed

You don’t need a fancy bakery setup for this. Here is what you will need:

• 9×13-inch baking pan: A metal pan gives a slightly crisper edge, but glass works fine too. Just reduce the oven temperature by 25°F if using glass.
• Large mixing bowl: For the cake batter.
• Medium mixing bowl: For the frosting.
• Whisk or electric hand mixer: A hand mixer makes the frosting much easier, but a strong arm and a whisk will get the job done.
• Rubber spatula: For scraping the bowl and spreading the frosting.
• Cooling rack: Essential for letting the cake cool completely before frosting.
• Measuring cups and spoons: Standard set for accuracy.

If you don’t have a hand mixer, you can make the frosting in a stand mixer or even by hand. Just be prepared for a small arm workout—it is worth it.

Preparation Method

Follow these steps, and you will have a cake that tastes like it came from a fancy bakery. Trust the process, especially the cooling time.

1. Preheat and Prep: Preheat your oven to 350°F (175°C). Grease your 9×13-inch pan thoroughly with butter or non-stick spray. I like to dust it with a little flour too, just to be safe.
2. Mash the Bananas: In a small bowl, mash your ripe bananas with a fork until mostly smooth. A few small lumps are totally fine—they add texture. Set aside.
3. Mix the Wet Ingredients: In your large mixing bowl, whisk together the eggs, vegetable oil, sour cream, mashed bananas, and vanilla extract. Whisk until the mixture is smooth and pale yellow. This should take about 30 seconds.
4. Add the Cake Mix: Pour the box of yellow cake mix into the wet ingredients. Stir with a spatula or wooden spoon until just combined. Do not overmix—a few streaks of flour are okay. Overmixing will make the cake tough.
5. Bake the Cake: Pour the batter into your prepared pan and spread it evenly. Bake for 30-35 minutes, or until a toothpick inserted into the center comes out clean or with a few moist crumbs. The edges should be golden brown and pulling away from the pan slightly.
6. Cool Completely: Place the pan on a cooling rack and let the cake cool completely. This is crucial. If you frost a warm cake, the frosting will melt into a puddle. Give it at least 1 hour. I often let it cool for 2 hours.
7. Make the Frosting: While the cake cools, make the frosting. In a medium bowl, beat the softened butter and peanut butter together with a hand mixer until smooth and creamy, about 1 minute. Scrape down the sides.
8. Add Sugar and Milk: Gradually add the powdered sugar, 1/2 cup at a time, mixing on low speed. Add the vanilla extract and 2 tablespoons of milk. Beat on medium-high until fluffy, about 2 minutes. If the frosting is too thick, add another tablespoon of milk. If it is too thin, add a little more powdered sugar.
9. Frost the Cake: Once the cake is completely cool, spread the peanut butter frosting evenly over the top. Use an offset spatula for a smooth finish, or leave it rustic with swirls.
10. Add Toppings: Sprinkle with chopped peanuts and chocolate shavings immediately, while the frosting is still soft so they stick.

Cooking Tips & Techniques

I have made this cake more times than I can count, and I have definitely learned a few things the hard way. Here is what I wish I knew from the start.

• The Banana Ripeness Matters: Do not use yellow bananas. You want them covered in brown spots. The sugar content is higher, and the flavor is much more intense. Greenish bananas will give you a bland, starchy cake.
• Room Temperature Ingredients: This is not just a suggestion. Cold eggs and cold sour cream will make the batter lumpy and the cake less tender. Pull everything out of the fridge 30 minutes before you start.
• Don’t Overbake: The toothpick test is your friend. A dry toothpick means you have gone too far. You want a few moist crumbs clinging to it. Overbaking dries out the cake, and the sour cream moisture can’t save it.
• Frosting Consistency: If your frosting looks curdled or separated, your butter was too cold, or your peanut butter was too warm. Fix it by placing the bowl over a pot of warm water for 10 seconds, then beat again. It usually comes back together.
• Slice Cleanly: For neat slices, run your knife under hot water, dry it off, and then cut. Wipe the blade clean between each slice. This gives you those beautiful, bakery-style pieces.

Variations & Adaptations

One of the best things about this cake is how easy it is to adapt. Here are some ways I have tweaked it over the years.

• Chocolate Elvis Cake: Use a chocolate cake mix instead of yellow. The chocolate and peanut butter combo is legendary. Add 1/2 cup chocolate chips to the batter for extra gooeyness.
• Gluten-Free Version: Swap the regular yellow cake mix for a gluten-free yellow cake mix (I like King Arthur Measure for Measure). Ensure your peanut butter is certified gluten-free. The results are nearly identical.
• Bacon Topping: For the true Elvis experience, cook 4 strips of bacon until crispy, crumble them, and sprinkle over the frosting along with the peanuts. It sounds weird, but the salty, smoky crunch is incredible.
• Spice It Up: Add 1 teaspoon of cinnamon and 1/4 teaspoon of nutmeg to the cake batter. It gives the banana flavor a warm, cozy depth that pairs beautifully with the peanut butter.
• Dairy-Free Option: Use a dairy-free yellow cake mix, replace the sour cream with full-fat coconut cream, and use a dairy-free butter alternative in the frosting. The texture will be slightly different, but still delicious.

Serving & Storage Suggestions

This cake is incredibly versatile, whether you are serving it for a party or just sneaking a slice with your morning coffee.

• Serving Temperature: I prefer this cake at room temperature. The frosting is soft and creamy, and the cake is perfectly tender. If you refrigerate it, let it sit out for 20 minutes before serving.
• Presentation: Dust the top with a little cocoa powder or cinnamon for a pretty finish. Serve slices with a side of vanilla ice cream or a drizzle of warm chocolate sauce for extra indulgence.
• Storage: Store the cake in an airtight container at room temperature for up to 3 days. If your kitchen is warm, store it in the fridge to prevent the frosting from getting too soft.
• Freezing: This cake freezes beautifully. Freeze the unfrosted cake, wrapped tightly in plastic wrap and foil, for up to 3 months. Thaw overnight in the fridge, then make the frosting fresh. You can also freeze frosted slices on a baking sheet, then wrap individually.
• Flavor Development: Honestly, this cake tastes even better on day two. The banana flavor deepens, and the peanut butter frosting melds into the cake. It is the perfect make-ahead dessert.

Nutritional Information & Benefits

Let’s be real—this is a dessert, not a health food. But knowing what is in it helps you enjoy it mindfully.

• Estimated Per Serving (1/12 of cake): Calories: 480, Fat: 28g, Carbs: 54g, Protein: 9g, Sugar: 35g.
• Protein Boost: The peanut butter and eggs provide a decent amount of protein for a dessert, helping to keep you fuller longer.
• Potassium: Bananas are a good source of potassium, which supports heart health and muscle function.
• Allergens: This recipe contains wheat, eggs, dairy, and peanuts. For a nut-free version, use sunflower seed butter (SunButter) in the frosting.
• Portion Control: This cake is rich, so a small slice goes a long way. I like to cut it into 16 smaller squares for parties.

Frequently Asked Questions

Can I use a homemade yellow cake recipe instead of a box mix?

Absolutely. If you have a favorite from-scratch yellow cake recipe, use it. Just make sure the yield is equivalent to a 9×13 pan (about 4 cups of batter). The box mix is just a shortcut for busy days.

My peanut butter frosting is too thick. How do I fix it?

Add milk, one tablespoon at a time, and beat on medium speed until it reaches a spreadable consistency. If it becomes too thin, add a bit more powdered sugar.

Can I use crunchy peanut butter in the frosting?

You can, but the frosting will have small peanut chunks. It adds a nice texture, but it won’t be smooth. If you want a smooth base, stick with creamy peanut butter and add chopped peanuts on top for crunch.

How do I know when the cake is done baking?

The edges will be golden brown and pulling away from the pan. A toothpick inserted into the center should come out with a few moist crumbs, not wet batter. The center should spring back when lightly touched.

Can I make this into cupcakes instead of a sheet cake?

Yes! Line a muffin tin with paper liners and fill each cup 2/3 full. Bake at 350°F (175°C) for 18-22 minutes. You will get about 24 cupcakes. Cool completely before frosting.

Conclusion

This Elvis Presley Cake is more than just a dessert—it is a little piece of nostalgia that brings people together. It is the cake I bring to potlucks when I want to impress without stress. It is the cake I make on rainy Sundays when I need a hug in food form. The combination of moist banana cake and creamy peanut butter frosting is simply unbeatable.

I hope you give this recipe a try and make it your own. Maybe add some bacon, or swap in chocolate cake mix. The beauty of this recipe is how forgiving and adaptable it is. If you make it, I would love to hear how it turned out. Leave a comment below or tag me in your photos—I genuinely read every single one. Happy baking, friend.

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