There’s something special about the harmonious blend of chocolate and peanut butter that can transport you back to carefree days filled with sweet treats. Imagine sinking your teeth into a fluffy cupcake, only to find a rich, creamy peanut butter surprise nestled inside. That’s exactly what these Keto Reese’s Filled Cupcakes deliver—a guilt-free indulgence that doesn’t compromise on flavor.
As someone who cherishes homemade delights yet craves comfort food that aligns with my ketogenic lifestyle, I discovered this deliciously decadent recipe that beautifully marries convenience and health. Perfect for anyone seeking to escape the fast-food monotony, these cupcakes are sugar-free and low in carbs, making them a treat you can enjoy without worry. Whether you’re a dedicated keto follower or simply someone who loves a good dessert, this recipe will surely delight your taste buds and leave you asking for seconds!

Why You’ll Love This Reese’s Peanut Butter & Chocolate Cupcakes Recipe
Indulgent Discovery: These Keto Reese’s Filled Cupcakes redefine dessert with their incredible flavor and texture that rivals any classic treat.
Guilt-Free Pleasure: Indulge in the buttery richness of peanut butter and chocolate without the carbs, thanks to sugar-free ingredients.
Easy to Make: Requiring minimal baking skills, this recipe seamlessly combines simplicity and satisfaction.
Nostalgic Flavor: With a creamy peanut butter center, you’ll be transported back to childhood delight with every bite.
Versatile Options: Experiment with different nut butters or flours to make this recipe uniquely yours, like using Dark Chocolate Raspberry for another tantalizing dessert experience.
Crowd-Pleasing Treat: Serve these cupcakes at any gathering, and watch as they disappear—perfect for both keto lovers and dessert enthusiasts alike!
Reese’s Peanut Butter & Chocolate Cupcakes Ingredients
For the Cupcakes
• Almond Flour – Provides a nutty flavor and moist texture; use blanched almond flour for best results.
• Baking Soda – Helps the cupcakes rise for a fluffy texture.
• Baking Powder – Works with baking soda to ensure lightness.
• Swerve Confectioners Sugar Substitute – Sweetens the cupcakes without the carbs; can be substituted with erythritol or stevia.
• Eggs – Acts as a binder and moisture provider to keep cupcakes tender.
• Plain Greek Yogurt – Adds moisture and richness, enhancing the cupcakes’ fluffiness.
• Vanilla Extract – Enhances overall flavor, making the cupcakes taste delightful.
• Sugar-Free Reese’s Peanut Butter Cups – The star filling that brings the nostalgic flavor of Reese’s to the cupcakes.
For the Icing
• Butter – Provides a creamy texture for the frosting, making it deliciously smooth.
• Cocoa Powder – Adds a rich chocolate flavor; use unsweetened with no added sugar for the best results.
• Natural Peanut Butter – A sweetener-free option that contributes to the creaminess of the icing.
• Heavy Whipping Cream – Makes the icing rich and smooth, perfect for spreading or piping.
Enjoying these delightful Reese’s Peanut Butter & Chocolate Cupcakes is not only possible, but also guilt-free!
How to Make Keto Reese’s Filled Cupcakes
- Preheat: Start by preheating your oven to 350°F (175°C). Prepare your muffin tin by lining it with 8 cupcake liners to keep your cupcakes from sticking.
- Mix Ingredients: In a mixing bowl, combine all cupcake ingredients (remember to hold off on the peanut butter cups!) and blend them until smooth. Achieving a lump-free batter is key for fluffy cupcakes.
- Fill Liners: Carefully fill each cupcake liner halfway with the batter. This provides enough room for the delicious filling without overflowing.
- Add Peanut Butter Cups: Place a sugar-free Reese’s Peanut Butter Cup right in the center of each filled liner. Top with more batter to cover the cups completely, ensuring a surprise in every bite.
- Bake: Pop your muffin tin into the oven and bake for about 25 minutes. They’re done when a toothpick inserted in the center comes out clean, signaling a perfect bake. Let them cool at room temperature.
- Prepare Icing: While the cupcakes are cooling, prepare the icing. Mix all icing ingredients in a bowl until you achieve a smooth, creamy consistency that’s perfect for frosting.
- Frost & Enjoy: Once the cupcakes have cooled completely, generously frost each one with the peanut butter icing. Take a moment to savor the sight before diving in!
- Store Leftovers: If you have any leftovers (which is unlikely with these scrumptious treats!), store them in an airtight container in the fridge for up to 3–4 days to keep them fresh.
Optional: Serve with a drizzle of sugar-free chocolate sauce for an extra indulgent touch!
Exact quantities are listed in the recipe card below.

Reese’s Peanut Butter Variations
Feel inspired to make these cupcakes your own with some delicious twists and turns!
- Nut Butter Swap: Use almond or cashew butter instead of peanut butter for a unique flavor profile that still echoes the original nostalgia.
- Flour Alternatives: Try hazelnut or pecan flour for a different nutty flavor that enhances the richness of your cupcakes. This change can deliver an exciting taste adventure!
- Coconut Twist: Add shredded unsweetened coconut to the batter or as a topping for a tropical flair and added texture.
- Chocolate Chips: Fold in sugar-free dark chocolate chips into the batter for an extra chocolaty delight that will have chocolate lovers swooning.
- Spicy Kick: Add a dash of cayenne pepper or cinnamon for a little heat. The warmth of spices will create an unexpected flavor contrast that elevates your cupcakes.
- Fruit Flavor: Incorporate a few drops of almond or maple extract to bring a hint of sweetness and depth, complementing the chocolate and peanut butter beautifully.
- Mini Cupcakes: Use a mini muffin tin to create bite-sized versions, perfect for sharing at gatherings or as a decadent snack throughout the day.
- Icing Variations: Experiment with a cream cheese frosting instead of peanut butter icing for a tangy yet rich topping that pairs well with the cupcakes.
Expert Tips for Reese’s Peanut Butter & Chocolate Cupcakes
- Sift Ingredients: Sifting almond flour and cocoa powder ensures there are no lumps, helping you achieve a smooth batter for the cupcakes.
- Check Sweetness: Taste your batter before baking. If needed, adjust the sweetness by adding more Swerve or your preferred sugar substitute—this will keep the keto Reese’s Peanut Butter & Chocolate Cupcakes delicious!
- Proper Cooling: Allow cupcakes to cool completely before frosting to prevent the icing from melting; this ensures a rich, creamy top instead of a gooey mess.
- Avoid Overmixing: Mix the batter just until combined; overmixing can lead to denser cupcakes rather than the light, fluffy texture you want.
- Experiment Safely: Want a different twist? Consider mixing in chopped nuts or dark chocolate chips, but ensure all ingredients adhere to your keto lifestyle.
What to Serve with Keto Reese’s Filled Cupcakes?
Pair these delightful cupcakes with some perfect accompaniments to create a memorable and satisfying experience for your taste buds.
- Rich Coffee: A bold cup of coffee contrasts beautifully with the sweetness of the cupcakes, enhancing the indulgent flavors.
- Herbal Tea: A calming herbal tea, such as chamomile or peppermint, provides a refreshing balance to these rich treats.
- Fresh Berries: Juicy strawberries or raspberries add a burst of tangy freshness that pairs wonderfully with the chocolate and peanut butter.
- Keto Ice Cream: Scoop up some low-carb vanilla or chocolate ice cream for an extra decadent dessert combination.
- Whipped Cream: Light, sugar-free whipped cream adds a creamy texture that complements the cupcake’s moistness perfectly.
- Chocolate Sauce: Drizzle sugar-free chocolate sauce over each cupcake for added elegance and an extra layer of chocolate goodness.
- Nutty Mix: Serve alongside a small bowl of mixed nuts for a crunchy texture and a savory contrast to the sweetness.
- Milk Alternative: A glass of unsweetened almond or coconut milk makes for a delicious drink pairing that stays keto-friendly.
- Decadent Smoothie: Blend a chocolate-protein smoothie to keep your dessert indulgent while sticking to those low-carb guidelines.
How to Store and Freeze Reese’s Peanut Butter & Chocolate Cupcakes
Fridge: Store leftover cupcakes in an airtight container in the fridge for up to 3–4 days to keep them fresh and delicious.
Freezer: For longer storage, freeze individual cupcakes wrapped tightly in plastic wrap or in a freezer-safe container for up to 3 months.
Thawing: To enjoy later, thaw frozen cupcakes overnight in the fridge or at room temperature for a few hours; avoid microwave thawing to retain texture.
Reheating: If desired, gently reheat thawed cupcakes in the microwave for 10-15 seconds to warm them up, bringing back that delightful fresh-baked taste.

Keto Reese’s Filled Cupcakes Recipe FAQs
What type of almond flour should I use for the cupcakes?
Absolutely! I recommend using blanched almond flour for the best texture and flavor. This type of almond flour is finely ground and gives your cupcakes a light, fluffy consistency, unlike coarse almond flour, which can result in a denser final product.
How should I store leftover cupcakes?
It’s best to store your leftover cupcakes in an airtight container in the fridge for up to 3–4 days. This will help maintain their moisture and prevent them from drying out. If you notice any condensation forming inside the container, simply leave the lid slightly ajar for a while to let it evaporate.
Can I freeze these cupcakes?
Very! To freeze these Keto Reese’s Filled Cupcakes, wrap each cupcake tightly in plastic wrap or place them in a freezer-safe container. They can be stored in the freezer for up to 3 months. When you’re ready to enjoy them, thaw the cupcakes overnight in the fridge or let them sit at room temperature for a few hours before serving.
What should I do if my cupcakes come out too dense?
If you’re facing dense cupcakes, don’t worry! This can happen if the batter is overmixed or if the ingredients weren’t properly measured. To remedy this for next time, ensure that you mix the batter just until combined and use the correct measuring techniques—spooning flour into the measuring cup rather than scooping directly can prevent adding too much. If you find that they’re slightly dense despite all efforts, a dollop of whipped cream on top can add a delightful fluffiness!
Are these cupcakes suitable for people with nut allergies?
Unfortunately, since the base of this recipe is made with almond flour and includes peanut butter for flavor, it would not be suitable for anyone with nut allergies. However, if you’re looking for a nut-free option, you could try substituting the almond flour with sunflower seed flour, keeping in mind that results may vary.
What can I substitute for Swerve Confectioners Sugar Substitute?
You can certainly substitute Swerve with erythritol or stevia if desired. Keep in mind that erythritol may have a slightly different sweetness level, so you may need to adjust the quantity based on your taste. If using stevia, it’s much sweeter than sugar, so a smaller amount will suffice; I usually recommend starting with a quarter of the amount and tasting as you go.

Indulgent Reese’s Peanut Butter & Chocolate Cupcakes Recipe
Equipment
- Oven
- Mixing bowl
- Muffin tin
- Cupcake Liners
- Whisk
Ingredients
For the Cupcakes
- 2 cups Almond Flour Blanched for best results
- 1 teaspoon Baking Soda
- 1 teaspoon Baking Powder
- 3/4 cups Swerve Confectioners Sugar Substitute Can be substituted with erythritol or stevia
- 3 large Eggs
- 1 cup Plain Greek Yogurt
- 1 teaspoon Vanilla Extract
- 8 pieces Sugar-Free Reese’s Peanut Butter Cups For filling
For the Icing
- 1/2 cup Butter Softened
- 1/4 cup Cocoa Powder Unsweetened
- 1/4 cup Natural Peanut Butter Sweetener-free
- 1/4 cup Heavy Whipping Cream
Instructions
How to Make Keto Reese’s Filled Cupcakes
- Preheat your oven to 350°F (175°C). Prepare your muffin tin by lining it with 8 cupcake liners.
- In a mixing bowl, combine all cupcake ingredients (hold off on the peanut butter cups!) and blend until smooth.
- Carefully fill each cupcake liner halfway with the batter.
- Place a sugar-free Reese’s Peanut Butter Cup in the center of each filled liner. Top with more batter to cover.
- Bake for about 25 minutes until a toothpick comes out clean. Let cool at room temperature.
- While cooling, mix all icing ingredients until smooth and creamy.
- Once cupcakes are cooled, frost each one generously with the icing.
- Store leftovers in an airtight container in the fridge for 3-4 days if any remain.
Notes





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