Loaded Peanut Butter Layer Cake
If you’re looking for a show-stopping dessert that celebrates the rich, creamy goodness of peanut butter, then this Loaded Peanut Butter Layer Cake is just what you need! This cake is a delightful treat for any peanut butter lover, packed with flavor in every layer. Whether it’s a birthday party, family gathering, or just an indulgent weekend bake, this cake is sure to impress everyone at the table.
What I love most about this recipe is how simple it is to whip up. With just a few wholesome ingredients, you’ll create a masterpiece that not only looks beautiful but tastes heavenly. Trust me; once you slice into this decadent cake, you’ll understand why it has become a favorite of mine!
Why You’ll Love This Recipe
- Deliciously Rich Flavor: The combination of peanut butter in every layer makes each bite melt in your mouth.
- Family-Friendly Treat: Kids and adults alike will adore this cake, making it perfect for gatherings.
- Easy to Make: With straightforward steps and simple ingredients, even novice bakers can shine!
- Make-Ahead Friendly: Bake the layers ahead of time and assemble when you’re ready to serve.
- Customizable Decorations: Get creative with toppings; add extra peanut butter chips or crushed nuts for fun textures!

Ingredients You’ll Need
Let’s gather our ingredients! You’ll find that these are simple and wholesome components that come together beautifully in this Loaded Peanut Butter Layer Cake.
For the Cake
- 1/2 cup (112g) unsalted butter, room temperature
- 3/4 cups (155g) sugar
- 3/4 cup (108g) brown sugar, loosely packed
- 3/4 cup (210g) peanut butter
- 1/2 cup (115g) sour cream
- 2 tsp vanilla extract
- 3 large eggs
- 2 1/2 cups (325g) all-purpose flour
- 2 3/4 tsp baking powder
- 1/2 tsp salt
- 1/2 cup (120ml) milk
- 1/4 cup (60ml) water
For the Frosting
- 2 cups (448g) salted butter, room temperature
- 1 1/4 cups (350g) peanut butter
- 9 cups (1035g) powdered sugar
- 6-7 tbsp (90-105ml) water or milk
For the Toppings
- 10 oz peanut butter chips
- 6 oz peanut butter chips
- 1/2 cup (120ml) heavy whipping cream
Variations
One of the best things about this Loaded Peanut Butter Layer Cake is its flexibility! Feel free to make it your own with these fun variations:
- Add Some Crunch: Incorporate crushed peanuts between the layers for added texture.
- Switch Up the Frosting: Try using chocolate frosting instead for a delicious twist!
- Go Gluten-Free: Substitute all-purpose flour with gluten-free flour for a gluten-free version.
- Mix in Chocolate: Add chocolate chips to the batter for an extra layer of flavor.
How to Make Loaded Peanut Butter Layer Cake
Step 1: Cream the Butters and Sugars
Start by creaming together the unsalted butter, sugar, brown sugar, and peanut butter until it’s light and fluffy. This step is crucial because it helps incorporate air into your batter, making your cake light and airy.
Step 2: Add Wet Ingredients
Next, mix in the sour cream, vanilla extract, and eggs one at a time. Make sure everything is well combined. The sour cream adds moisture and richness while enhancing the cake’s overall flavor.
Step 3: Combine Dry Ingredients
In another bowl, whisk together the all-purpose flour, baking powder, and salt. Gradually add this mixture to your wet ingredients while alternating with milk and water. Mix until just combined; overmixing can lead to a dense cake!
Step 4: Bake Your Layers
Pour your batter evenly into prepared cake pans. Bake at 350°F (175°C) for about 23 minutes or until a toothpick comes out clean. Keep an eye on them toward the end so they don’t overbake!
Step 5: Whip Up the Frosting
While your cakes cool, beat together salted butter and peanut butter until smooth. Gradually add powdered sugar along with water or milk until you achieve your desired consistency. This frosting will be creamy and perfect for layering.
Step 6: Assemble Your Cake
Once cooled, place one layer of cake on your serving plate. Spread frosting generously on top before adding another layer. Repeat until all layers are stacked, then frost the top and sides of your cake.
Step 7: Decorate!
Now for the fun part—decorating! Sprinkle on those peanut butter chips and drizzle with heavy whipping cream if desired. Get creative!
And voilà! Your Loaded Peanut Butter Layer Cake is ready to be enjoyed. It’s time to slice into this delightful treat and share it with friends or keep it all to yourself—no judgment here!
Pro Tips for Making Loaded Peanut Butter Layer Cake
Baking can be a delightful adventure, especially when you’re creating something as indulgent as this Loaded Peanut Butter Layer Cake! Here are some helpful tips to ensure your cake turns out perfectly every time:
- Use room temperature ingredients: Let your butter, eggs, and sour cream sit out for about 30 minutes before using them. Room temperature ingredients blend together more smoothly, resulting in a lighter cake texture.
- Measure flour correctly: Fluff your flour before scooping it into the measuring cup and level it off with a knife. This prevents the cake from turning dense due to excess flour.
- Don’t overmix the batter: Mix until just combined to keep the cake light and fluffy. Overmixing can lead to a tougher texture, which we want to avoid in a delicate layer cake.
- Check for doneness with a toothpick: Insert a toothpick into the center of the cake; if it comes out clean or with a few crumbs attached, it’s ready! If it’s wet, give it a few more minutes in the oven.
- Allow cakes to cool completely: Before frosting, make sure your cake layers are completely cool. This prevents the frosting from melting and helps achieve that beautiful layered look.
How to Serve Loaded Peanut Butter Layer Cake
Presentation is key when serving this decadent dessert! Here are some creative ideas to make your Loaded Peanut Butter Layer Cake truly shine at any gathering.
Garnishes
- Chopped peanuts: Sprinkle chopped peanuts on top of the cake for added crunch and flavor. They not only enhance the visual appeal but also complement the peanut butter taste beautifully.
- Chocolate drizzle: A simple drizzle of melted dairy-free chocolate on top can elevate both the aesthetics and richness of your cake. It adds an indulgent touch that chocolate lovers will appreciate.
Side Dishes
- Fresh fruit salad: A light and refreshing fruit salad made with seasonal fruits balances out the richness of the cake. The natural sweetness makes it an excellent accompaniment.
- Vanilla almond milkshake: Pairing this cake with a creamy vanilla almond milkshake offers a deliciously smooth contrast to its texture. Plus, it’s a fun treat for all ages!
- Coffee or tea: A warm cup of coffee or tea can enhance the flavors of the peanut butter layer cake while providing a comforting beverage option alongside dessert.
By following these tips and serving suggestions, you’ll create an unforgettable experience around this Loaded Peanut Butter Layer Cake that everyone will enjoy! Happy baking!

Make Ahead and Storage
This Loaded Peanut Butter Layer Cake is perfect for meal prep! You can easily make it ahead of time and store it for later enjoyment. Here are some simple guidelines to help you keep this delicious cake fresh.
Storing Leftovers
- Allow the cake to cool completely before storing.
- Place the cake in an airtight container or cover with plastic wrap.
- Store at room temperature for up to 3 days or in the refrigerator for up to a week.
- If you’ve already cut the cake, consider using a cake dome or a sealed cake carrier.
Freezing
- Wrap each layer of the cooled cake tightly in plastic wrap.
- Place the wrapped layers in a freezer-safe bag or container.
- Freeze for up to 3 months for optimal freshness.
- For freezing individual slices, wrap them individually in plastic wrap and then place them in a freezer-safe container.
Reheating
- To thaw, remove from the freezer and let it sit at room temperature for several hours or overnight in the refrigerator.
- If you prefer your cake warm, microwave individual slices on low power for about 10-15 seconds until just warmed through.
- Avoid reheating the entire cake as it may dry out; instead, enjoy fresh slices.
FAQs
Here are some common questions you might have about making this delicious cake!
Can I make this Loaded Peanut Butter Layer Cake gluten-free?
Yes! To make a gluten-free version, simply substitute all-purpose flour with a gluten-free blend. Ensure that all other ingredients are also gluten-free.
What can I use instead of sour cream in this Loaded Peanut Butter Layer Cake?
You can replace sour cream with plain Greek yogurt or a dairy-free yogurt alternative. Both options will maintain moisture and add a nice tangy flavor.
How should I decorate my Loaded Peanut Butter Layer Cake?
Feel free to get creative! You can top the cake with additional peanut butter chips, crushed peanuts, or even drizzle some chocolate sauce on top for an extra treat!
Final Thoughts
I hope you’re as excited to bake this Loaded Peanut Butter Layer Cake as I am! It’s not just a dessert; it’s a celebration of peanut butter goodness that’s sure to please anyone who takes a bite. Enjoy making it, sharing it, and savoring every slice. Thank you for joining me on this delicious journey—happy baking!
Loaded Peanut Butter Layer Cake
Get ready to delight your taste buds with our Loaded Peanut Butter Layer Cake! This luscious dessert is a peanut butter lover’s dream, featuring rich layers of moist cake and creamy frosting that will impress at any gathering. Perfect for birthdays, family reunions, or just an indulgent treat for yourself, this cake combines simple ingredients into a stunning masterpiece. With its melt-in-your-mouth texture and customizable toppings, every slice promises a heavenly experience. Whether you’re a novice or an expert baker, this recipe ensures that you can easily create something special that everyone will adore!
- Prep Time: 30 minutes
- Cook Time: 23 minutes
- Total Time: 53 minutes
- Yield: Serves approximately 12 slices 1x
- Category: Dessert
- Method: Baking
- Cuisine: American
Ingredients
- 1/2 cup (112g) unsalted butter, room temperature
- 3/4 cups (155g) sugar
- 3/4 cup (108g) brown sugar, loosely packed
- 3/4 cup (210g) peanut butter
- 1/2 cup (115g) sour cream
- 2 tsp vanilla extract
- 3 large eggs
- 2 1/2 cups (325g) all-purpose flour
- 2 3/4 tsp baking powder
- 1/2 tsp salt
- 1/2 cup (120ml) milk
- 1/4 cup (60ml) water
- 2 cups (448g) salted butter, room temperature
- 1 1/4 cups (350g) peanut butter
- 9 cups (1035g) powdered sugar
- 6–7 tbsp (90-105ml) water or milk
- 10 oz peanut butter chips
- 6 oz peanut butter chips
- 1/2 cup (120ml) heavy whipping cream
Instructions
- Preheat the oven to 350°F (175°C) and grease your cake pans.
- Cream together unsalted butter, sugar, brown sugar, and peanut butter until light and fluffy.
- Add sour cream and eggs one at a time, mixing well after each addition.
- In another bowl, whisk flour, baking powder, and salt. Gradually mix into wet ingredients alternating with milk until just combined.
- Pour the batter into prepared pans and bake for 23 minutes or until a toothpick comes out clean.
- Allow the cakes to cool completely before frosting with creamy peanut butter frosting made from salted butter and powdered sugar.
Nutrition
- Serving Size: 1 slice (100g)
- Calories: 380
- Sugar: 42g
- Sodium: 210mg
- Fat: 18g
- Saturated Fat: 6g
- Unsaturated Fat: 10g
- Trans Fat: 0g
- Carbohydrates: 50g
- Fiber: 2g
- Protein: 7g
- Cholesterol: 35mg
