Peanut Butter & Raspberry Swirl Cake
There’s nothing quite like the indulgence of a cake that combines the rich, creamy goodness of peanut butter with the tart brightness of raspberries. This Peanut Butter & Raspberry Swirl Cake is a delightful dessert that balances these flavors perfectly, ensuring every bite is a satisfying treat. Whether served at a celebration or simply enjoyed with a cup of coffee, it’s bound to impress anyone who gets a slice.
Baking this cake is not only about creating a delicious dessert; it’s also a rewarding process that fills your kitchen with the irresistible aroma of sweet and nutty scents. The combination of peanut butter and raspberry jam in the batter gives it a marbled appearance that is as attractive as it is delicious. This cake boasts a tender crumb thanks to the addition of sour cream, which also imparts a subtle tanginess that complements the other flavors beautifully. Perfectly sweet, it’s a cake that caters to multiple tastes and preferences, making it a fantastic choice for gatherings or family get-togethers.
Why make this recipe
This Peanut Butter & Raspberry Swirl Cake deserves a spot in your recipe repertoire for several reasons. Firstly, it’s an uncomplicated but impressive bake that satisfies a range of cravings, from sweet to slightly salty. The flavor profile is versatile, making it suitable for any time of day—enjoy it as breakfast, a snack, or dessert. Secondly, the use of common ingredients ensures that you likely have most of what you need already in your pantry. Baking with peanut butter not only adds incredible richness but also increases the protein content, allowing you to enjoy dessert without the guilt. Finally, the addition of fresh raspberries elevates the dish, providing a nutritional boost while giving a vibrant pop of color that makes the cake visually stunning.
Aside from its flavor, this cake can be easily adapted to suit your dietary needs. If you prefer a lower-sugar option, you can cut back on the sugar or substitute it with a sugar replacement suitable for baking. Those who are gluten-free can substitute all-purpose flour with a gluten-free blend without compromising the cake’s texture too much. The simplicity of this cake lies in its swirls—each slice captures a beautiful marbling effect, ensuring no two pieces are the same. It’s a forgiving recipe that allows room for creativity while remaining fundamentally delicious.

How to make Peanut Butter & Raspberry Swirl Cake
Baking this delightful Peanut Butter & Raspberry Swirl Cake starts by preheating your oven to 350°F (175°C) and preparing your baking pan. Greasing an 8×8-inch square pan ensures that your cake comes out cleanly once baked, giving it the pristine look it deserves. The first step includes whisking together sugar and eggs, which serves as the foundation of your batter, creating a light and fluffy texture crucial for a successful cake. By mixing in the sour cream, peanut butter, and melted butter, you’re creating a creamy amalgamation that will be the heart of the cake, resulting in richness that contrasts beautifully with the tart raspberry infusion.
Once you incorporate the leavening agents—baking powder and baking soda—into your mixture, you’ll gently fold in the all-purpose flour. This careful mixing helps achieve an airy structure while minimizing the risk of overworking the gluten, which ensures a moist cake with the perfect crumb. After you’ve prepared the batter, it’s time to create the signature raspberry swirl. By spooning raspberry jam over the top of the poured batter and swirling it with a skewer or knife, this adds an artistic touch and infuses layers of flavor throughout the cake. If you’re feeling adventurous, sprinkling some fresh raspberries on top not only augments the flavor but adds a lovely textural contrast.
The bake time will vary, as it generally takes about 40 to 50 minutes. Keeping an eye on the color and level of rising should guide you—golden edges coupled with a tester coming out clean are excellent indicators of readiness. After letting the cake cool in the pan for about 15 minutes, the use of parchment allows for easy lifting out and cooling on a wire rack, ensuring a perfect finish. This cake is one that beckons you to take a bite right away, allowing you to taste the delightful contrast of flavors that meld wonderfully together.
Ingredients
- 150 g white sugar
- 2 medium eggs
- 173 g sour cream
- 125 g smooth commercial peanut butter
- 113 g unsalted butter, melted
- 2 tsp vanilla extract
- ½ tsp fine sea salt
- 1½ tsp baking powder
- ½ tsp baking soda
- 160 g all-purpose flour
- 90 g raspberry jam
- 70 g fresh raspberries (optional)
Directions
- Heat the oven to 350°F (175°C) and place a rack in the middle position. Grease an 8×8-inch pan and line it with parchment, leaving overhang for easy removal.
- Whisk together sugar and eggs until the mixture becomes light and slightly airy. Mix in sour cream, peanut butter, melted butter, vanilla, and salt until the batter becomes smooth and well blended.
- Add baking powder and baking soda, then gently incorporate the flour until no dry streaks remain. Pour the batter into the prepared pan and level the surface. Spoon jam on top and swirl it through the batter using a skewer or knife. Add fresh raspberries on top if using.
- Bake for about 40–50 minutes, until the cake is risen and golden and a tester (avoiding jam spots) comes out clean. Let it rest in the pan for around 15 minutes, then lift it out using the parchment and cool completely on a wire rack.
Time Breakdown
• Preparation Time: 15 minutes
• Cooking Time: 0 minutes
• Baking Time: 40-50 minutes
• Chilling Time: 0 minutes
• Rising Time: 0 minutes
• Total Time: 55-65 minutes
• Servings: 9
How to serve Peanut Butter & Raspberry Swirl Cake
To serve your Peanut Butter & Raspberry Swirl Cake, consider cutting it into generous squares that showcase the beautiful swirls of raspberry jam. The presentation can be enhanced by dusting the top with a light sprinkle of powdered sugar or serving it with a dollop of whipped cream. This simple addition can elevate its elegance and lend a creamy contrast to the cake’s nutty notes and raspberry swirl. While the cake is delightful on its own, pairing it with a scoop of vanilla ice cream can take the indulgence up a notch, making it an irresistible treat on warmer days.
Additionally, serving it alongside a hot cup of coffee or tea will complement the flavors beautifully, creating an enjoyable experience for both casual and celebratory occasions. It’s versatile as a dessert for family dinners, lovely as an afternoon treat, or even a hit at potlucks. With its beautiful marbled appearance and fabulous taste, guests will surely be taking second helpings of this delightful cake.
How to store Peanut Butter & Raspberry Swirl Cake
Storing Peanut Butter & Raspberry Swirl Cake properly will help sustain its flavor and texture for as long as possible. Once the cake is completely cooled, you can cover it with plastic wrap or store it in an airtight container to keep it fresh. Ideally, it should be kept at room temperature if you plan on consuming it within a few days. This will maintain its moisture and prevent it from becoming too dry.
For longer storage, consider refrigerating the cake, particularly if you have added fresh raspberries on top, as they may spoil quicker. If you choose to refrigerate it, ensure it’s well covered to avoid absorbing any odors from the fridge. The cake can last up to a week when stored this way. If you wish to prolong its lifespan even further, freezing individual slices is an excellent option. Wrap each slice tightly in plastic wrap and then foil, or place them in a freezer-safe bag, and they can last up to three months. When ready to enjoy, simply thaw at room temperature or pop it in the microwave for a few seconds to restore that freshly-baked warmth.
Tips to make Peanut Butter & Raspberry Swirl Cake
To enhance your baking experience and ensure the success of your Peanut Butter & Raspberry Swirl Cake, there are a few handy tips to keep in mind. Firstly, use high-quality peanut butter, as its flavor is central to the cake’s identity. Smooth peanut butter is essential for achieving a consistent batter, but if you’re a fan of crunchy, feel free to swap it in for added texture. Measuring your ingredients accurately is also vital; utilizing a kitchen scale ensures precise measurements, especially for dry ingredients, which can significantly affect the outcome.
In terms of the raspberry jam swirl, feel free to heat it slightly in the microwave before swirling it into the batter. Warming it makes it easier to spread and creates more of a fluid swirl rather than large clumps. If homemade raspberry jam is accessible to you, it can elevate the flavor even further and provide a personal touch. Experimenting with add-ins like chopped nuts or chocolate chips can also introduce exciting variations that might cater to different preferences, making the cake even more delightful.
Finally, ensure your ingredients are at room temperature before beginning the mixing process for optimum emulsification, leading to a well-blended batter that bakes evenly. Taking the extra time for meticulous preparation culminates in a cake worth sharing and celebrating.
Variation
No major variations, but you can adjust seasonings to taste.
Nutritional Information (Per Serving)
• Calories: 319 kcal
• Protein: 7 g
• Carbohydrates: 40 g
• Fat: 16 g
• Fiber: 1 g
• Sugar: 22 g
• Sodium: 295 mg
FAQs
Q: Can I use natural peanut butter instead of commercial?
A: Yes, but note that natural peanut butter can alter the texture slightly; ensure to mix well, as it tends to separate.
Q: Can I use frozen raspberries?
A: Yes, you can use frozen raspberries, but be sure to thaw and drain them to avoid excess moisture in the batter.
Q: Is this cake suitable for children?
A: Absolutely! The flavors are kid-friendly, and you can adjust the sweetness if desired. It’s a fun way for them to enjoy both peanut butter and raspberries.

Peanut Butter & Raspberry Swirl Cake
Ingredients
For the Cake Batter
- 150 g white sugar
- 2 medium eggs
- 173 g sour cream
- 125 g smooth commercial peanut butter High-quality peanut butter is recommended.
- 113 g unsalted butter, melted
- 2 tsp vanilla extract
- ½ tsp fine sea salt
- 1½ tsp baking powder
- ½ tsp baking soda
- 160 g all-purpose flour Can substitute with gluten-free blend.
For the Swirl
- 90 g raspberry jam Homemade jam can enhance flavor.
- 70 g fresh raspberries (optional) Use fresh raspberries for decoration.
Instructions
Preparation
- Preheat your oven to 350°F (175°C) and prepare an 8×8-inch square pan by greasing it and lining with parchment.
- Whisk together sugar and eggs until the mixture becomes light and slightly airy.
- Mix in sour cream, peanut butter, melted butter, vanilla, and salt until the batter is smooth and well-blended.
- Add baking powder and baking soda, then gently incorporate the flour until no dry streaks remain.
Baking
- Pour the batter into the prepared pan and level the surface.
- Spoon raspberry jam on top and swirl it through the batter using a skewer or knife. Add fresh raspberries on top if desired.
- Bake for about 40-50 minutes, until risen and golden, and a tester comes out clean.
- Let it rest in the pan for 15 minutes, then lift it out using the parchment and cool completely on a wire rack.