Loaded Peanut Butter Layer Cake
If you’re looking for a dessert that will make your heart sing and your taste buds dance, look no further than this Loaded Peanut Butter Layer Cake. This cake is a celebration of peanut butter in every bite, from the rich layers to the creamy frosting. It’s the kind of cake that brings everyone together—perfect for family gatherings, birthday parties, or just a cozy afternoon treat at home. Trust me, once you take a slice, you’ll understand why it’s a beloved recipe in my kitchen!
This cake is not only delicious but also surprisingly easy to whip up. Whether you’re a seasoned baker or just starting out, you’ll find joy in creating this masterpiece. Let’s dive into why this Loaded Peanut Butter Layer Cake deserves a spot on your dessert table!
Why You’ll Love This Recipe
- Peanut Butter Paradise: If you’re a fan of peanut butter, this cake is like a dream come true! Each layer is bursting with rich flavor.
- Family-Friendly: Kids and adults alike will adore this cake. It’s perfect for birthday celebrations or simply as an after-dinner delight!
- Easy to Make: With straightforward steps and simple ingredients, you can bake this beauty without any stress.
- Make Ahead: You can prepare this cake ahead of time! Just store it in the fridge until you’re ready to serve.
- Customizable: Feel free to dress it up with your favorite toppings or even switch out some ingredients to suit your taste.

Ingredients You’ll Need
Gathering the ingredients for this Loaded Peanut Butter Layer Cake is half the fun! You’ll find that these are simple, wholesome ingredients that you likely have on hand or can easily get from your local store. Let’s take a look at what you’ll need:
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 Decoration
- 10 oz peanut butter chips
- 6 oz peanut butter chips
- 1/2 cup (120ml) heavy whipping cream
Variations
One of the best things about baking is how flexible recipes can be! You can easily tweak this Loaded Peanut Butter Layer Cake to suit your tastes or dietary needs. Here are some fun variations to consider:
- Add Some Crunch: Stir in chopped peanuts for an extra crunch in the cake and frosting.
- Switch Up the Flavor: Use almond butter instead of peanut butter for a different nutty flavor that’s equally delicious.
- Make it Chocolatey: Add cocoa powder to part of the batter for a delightful chocolate-peanut butter combo!
- Go Sugar-Free: Substitute regular sugar with your favorite sweetener for a healthier twist.
How to Make Loaded Peanut Butter Layer Cake
Step 1: Prepare Your Batter
Start by preheating your oven to 350°F (175°C). Greasing and lining your cake pans will ensure that your layers come out easily. Cream together the unsalted butter, sugar, brown sugar, and peanut butter until light and fluffy. This step is crucial as it incorporates air into the batter, giving your cake that perfect fluffy texture.
Step 2: Mix in Wet Ingredients
Next, add in the sour cream, vanilla extract, and eggs one at a time. Mixing these well ensures that everything binds together smoothly. In another bowl, whisk together the flour, baking powder, and salt before gradually adding them into your wet mixture along with milk and water. This technique helps prevent lumps and creates an even batter.
Step 3: Bake Your Layers
Divide the batter evenly between your prepared pans and bake for about 23 minutes or until a toothpick inserted comes out clean. Keep an eye on them as they bake; overbaking can lead to dry cake layers!
Step 4: Make That Irresistible Frosting
While your cakes cool down completely, whip up the frosting by beating together salted butter and peanut butter until creamy. Gradually add powdered sugar while alternating with water or milk until you reach your desired consistency—smooth but spreadable!
Step 5: Assemble Your Cake
Once cooled, it’s time to layer! Place one cake layer on your serving plate and generously spread frosting on top before adding another layer. Repeat this process until all layers are stacked high with frosting between them.
Step 6: Decorate & Enjoy!
Top off your masterpiece by drizzling melted peanut butter chips mixed with heavy whipping cream over the top—a true showstopper! Feel free to sprinkle additional chips around if you like extra peanut buttery goodness.
Now slice into this Loaded Peanut Butter Layer Cake and watch everyone smile as they take their first bite! Enjoy every moment—it’s more than just dessert; it’s a memory made sweet!
Pro Tips for Making Loaded Peanut Butter Layer Cake
Baking this indulgent Loaded Peanut Butter Layer Cake can be a delightful experience with the right techniques!
- Use room temperature ingredients: Ensuring your butter, eggs, and sour cream are at room temperature helps create a smoother batter, resulting in a fluffier cake.
- Don’t overmix the batter: Mixing just until the ingredients are combined prevents the development of too much gluten, which can lead to a dense cake.
- Measure accurately: Using a kitchen scale for your dry ingredients ensures precision. This leads to more consistent results every time you bake.
- Cool layers completely: Allowing your cake layers to cool fully before frosting them prevents the frosting from melting and sliding off, giving you that perfect finish.
- Experiment with textures: Feel free to add crushed peanuts or chopped chocolate between layers for an extra crunch and flavor contrast in every bite.
How to Serve Loaded Peanut Butter Layer Cake
Serving this cake is just as fun as baking it! Here are some ideas to make your presentation truly special.
Garnishes
- Chopped peanuts: Sprinkle chopped roasted peanuts on top of the frosting for an added crunch that complements the creamy peanut butter.
- Chocolate drizzle: A warm drizzle of dairy-free chocolate sauce adds a rich contrast and makes the cake visually appealing.
- Fresh berries: A few fresh strawberries or raspberries on the plate brighten up the presentation and offer a refreshing tartness that balances out the sweetness.
Side Dishes
- Vanilla ice cream: A scoop of creamy vanilla ice cream serves as a perfect counterpart to the rich flavors of the cake, creating a delightful contrast in texture and taste.
- Fruit salad: A light fruit salad made with seasonal fruits can cleanse the palate and add freshness to your dessert table.
- Chocolate mousse: This airy dessert pairs beautifully with your layer cake, adding an elegant touch while complementing the peanut butter flavor.
- Coffee or tea: Serving a warm cup of coffee or herbal tea alongside enhances the overall experience, providing a comforting beverage that balances out sweetness.
With these tips and serving suggestions, your Loaded Peanut Butter Layer Cake will not only taste amazing but also impress your family and friends! Enjoy every delicious slice!

Make Ahead and Storage
This Loaded Peanut Butter Layer Cake is perfect for meal prep or special occasions, allowing you to make it ahead of time and store it for later enjoyment.
Storing Leftovers
- Allow the cake to cool completely before storing.
- Place any leftover slices in an airtight container at room temperature for up to 2 days.
- For longer storage, refrigerate the cake in an airtight container for up to a week.
Freezing
- Wrap the cake tightly in plastic wrap and then in aluminum foil to prevent freezer burn.
- Freeze the cake for up to 3 months.
- For best results, freeze the layers separately if you’ve already cut into it.
Reheating
- Thaw the cake in the refrigerator overnight before enjoying.
- If you prefer a warm slice, microwave individual pieces for about 10-15 seconds on low power.
FAQs
Here are some common questions that might pop up as you prepare your Loaded Peanut Butter Layer Cake!
Can I use natural peanut butter for the Loaded Peanut Butter Layer Cake?
Yes, you can use natural peanut butter, but be aware that it may affect the texture slightly. Natural peanut butter has less sugar and more oil, which might make your cake a bit denser.
How should I decorate my Loaded Peanut Butter Layer Cake?
You can get creative with decorations! Consider topping it with whipped cream, additional peanut butter chips, or even drizzles of melted chocolate for a delightful finish.
What can I use instead of heavy whipping cream in the frosting?
If you prefer not to use heavy whipping cream, you can substitute it with coconut cream or a non-dairy alternative like almond milk or oat milk whipped topping.
How long will my Loaded Peanut Butter Layer Cake last?
When stored properly, your cake will last up to 2 days at room temperature or about a week in the refrigerator. You can also freeze it for up to 3 months for later enjoyment!
Final Thoughts
I hope this Loaded Peanut Butter Layer Cake brings as much joy to your kitchen as it does to mine! The combination of rich flavors and creamy textures makes this dessert truly special. Enjoy making this indulgent treat and share it with friends and family—I’m sure they’ll love it just as much as you do. Happy baking!
Loaded Peanut Butter Layer Cake
Indulge in the delightful Loaded Peanut Butter Layer Cake, a dessert that brings together layers of rich peanut butter flavor and creamy frosting. Perfect for any occasion, this cake is easy to prepare and sure to impress family and friends with its moist texture and decadent taste. Whether you’re celebrating a birthday or enjoying a cozy afternoon treat, each slice offers a sweet escape into peanut butter paradise. Plus, it’s customizable—feel free to add your favorite toppings or variations!
- Prep Time: 20 minutes
- Cook Time: 23 minutes
- Total Time: 43 minutes
- Yield: Approximately 12 servings 1x
- Category: Dessert
- Method: Baking
- Cuisine: American
Ingredients
- 1/2 cup unsalted butter, room temperature
- 3/4 cups sugar
- 3/4 cup brown sugar, loosely packed
- 3/4 cup peanut butter
- 1/2 cup sour cream
- 2 tsp vanilla extract
- 3 large eggs
- 2 1/2 cups all-purpose flour
- 2 3/4 tsp baking powder
- 1/2 tsp salt
- 1/2 cup milk
- 1/4 cup water
- 2 cups salted butter, room temperature
- 1 1/4 cups peanut butter
- 9 cups powdered sugar
- 6–7 tbsp water or milk
- 10 oz peanut butter chips
- 6 oz peanut butter chips
- 1/2 cup heavy whipping cream
Instructions
- Preheat the oven to 350°F (175°C) and prepare your cake pans by greasing and lining them.
- In a mixing bowl, cream together unsalted butter, sugar, brown sugar, and peanut butter until light and fluffy.
- Mix in sour cream, vanilla extract, and eggs one at a time until well combined.
- In another bowl, whisk together all-purpose flour, baking powder, and salt; gradually mix into the wet ingredients along with milk.
- Divide the batter among prepared pans and bake for approximately 23 minutes or until a toothpick inserted comes out clean.
- Allow cakes to cool completely before frosting with a mix of salted butter and peanut butter combined with powdered sugar.
Nutrition
- Serving Size: 1 slice (100g)
- Calories: 450
- Sugar: 35g
- Sodium: 220mg
- Fat: 25g
- Saturated Fat: 10g
- Unsaturated Fat: 15g
- Trans Fat: 0g
- Carbohydrates: 50g
- Fiber: 2g
- Protein: 8g
- Cholesterol: 50mg
