Keto Peanut Butter Mug Cake

Looking for a quick and delicious keto-friendly dessert that satisfies your sweet tooth? This Keto Peanut Butter Mug Cake is your answer! It’s the perfect single-serving treat for when you’re craving something sweet, but don’t want to stray from your low-carb lifestyle. With just a few simple ingredients, you can whip up a warm, gooey, and indulgent dessert in minutes. Whether you’re a keto beginner or a seasoned pro, this mug cake is an easy way to enjoy something sweet without the guilt.

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Why You’ll Love Keto Peanut Butter Mug Cake

This recipe is everything you could want in a keto dessert. It’s low-carb, sugar-free, and packed with healthy fats, making it a perfect choice for those following a ketogenic diet. The peanut butter gives it a rich and creamy flavor, while the almond flour keeps it soft and moist. Plus, it’s made in a microwave, so there’s no fuss or mess to clean up afterward! If you love peanut butter, you’ll definitely want to add this one to your go-to keto desserts.

My Personal Experience

I can’t even tell you how many times I’ve made this Keto Peanut Butter Mug Cake. It’s my go-to when I need a quick dessert that feels indulgent but still fits into my keto meal plan. Honestly, I’ve been in the mood for a warm, peanut butter-filled treat that doesn’t take a lot of time to make, and this mug cake is perfect every time. The texture is spot on—it’s moist, fluffy, and perfectly sweetened. I sometimes add a few chocolate chips on top for extra flavor, and it just takes the whole thing to another level. It’s one of those recipes I can whip up anytime the cravings hit, and I always feel good knowing it’s a low-carb option!

Required Equipment

You won’t need much to make this delicious mug cake, just a few simple items that you probably already have in your kitchen. Here’s what you’ll need:

• Microwave-safe mug: This is a must for making a mug cake! I’ve found that using a large mug helps the cake cook evenly. I personally love using a sturdy mug with a wide base, as it gives the cake plenty of room to rise without overflowing.
• Microwave: The microwave is key for this quick recipe, so make sure it’s in good working condition! This is honestly a game-changer when you’re craving a dessert but don’t want to turn on the oven.
• Measuring spoons: These are essential to ensure you’re using the right amount of each ingredient. I recommend having a set of reliable measuring spoons—trust me, it makes the process so much smoother.
• Fork or whisk: For mixing your ingredients well and ensuring a smooth batter, a simple fork or small whisk will do the trick. I personally love using a fork for this recipe since it’s so easy to clean up afterward.

Ingredients & Substitutions

To make this Keto Peanut Butter Mug Cake, you’ll need just a handful of ingredients. Here’s what I use, along with a few possible substitutions if you’re looking for alternatives:

• 2 tbsp almond flour: This is the base of your mug cake, giving it the perfect texture. If you don’t have almond flour, coconut flour is a great low-carb substitute, but use only about half the amount since it’s more absorbent.
• 1 tbsp peanut butter: The star of this recipe! If you’re not a fan of peanut butter, you can substitute it with almond butter or even hazelnut butter for a different flavor.
• 1 tbsp unsweetened cocoa powder: This adds a rich chocolate flavor. You can skip this if you prefer a plain peanut butter mug cake.
• 1 tbsp sweetener (like stevia or erythritol): You can adjust the sweetness level to your taste. If you’re using a liquid sweetener, reduce the amount of liquid in the recipe slightly.
• 1 egg: This helps bind everything together and gives the cake its fluffiness. If you’re egg-free, a flax egg could work as a substitute.
• 1/2 tsp baking powder: This helps the cake rise and gives it a light texture.
• 1 tbsp heavy cream: This adds moisture to the batter, making the cake soft and tender. You can substitute it with coconut milk for a dairy-free version.
• 1/4 tsp vanilla extract: For that lovely hint of vanilla flavor. If you don’t have vanilla extract, almond extract could be an interesting substitution for a different twist.

How to Make Keto Peanut Butter Mug Cake

1. Prepare your mug: Choose a large microwave-safe mug. I like using a 12 oz mug to give the batter plenty of room to rise.
2. Mix dry ingredients: In the mug, combine almond flour, cocoa powder, sweetener, and baking powder. Use a fork to mix them together evenly.
3. Add wet ingredients: Add the peanut butter, egg, heavy cream, and vanilla extract to the dry ingredients. Stir everything well until you have a smooth batter. Make sure there are no lumps of almond flour.
4. Microwave: Microwave the mug on high for 1 minute. After 1 minute, check to see if the cake has set. If it’s still a bit wet in the center, microwave it for an additional 15-20 seconds.
5. Let it cool slightly: Once your cake is cooked, let it cool for a couple of minutes before enjoying. This gives the flavors time to settle in and makes it easier to eat.

Tips for this Recipe

• Don’t over-microwave: Overcooking the mug cake can make it dry. Start with 1 minute, and add more time in small intervals if needed.
• Add-ins: If you like chocolate, try adding some sugar-free chocolate chips to the batter for a melty, gooey treat.
• Serve with whipped cream: For an extra indulgent experience, top your mug cake with some sugar-free whipped cream or a drizzle of melted peanut butter.

Optional Additions

• Chocolate chips: Add some sugar-free chocolate chips to your batter before microwaving for a chocolate-peanut butter combo that’s to die for!
• Chopped nuts: Add chopped pecans, walnuts, or more peanuts for some crunch.

Serving Ideas

This Keto Peanut Butter Mug Cake is great on its own, but if you want to take it up a notch, here are some ideas:

• Serve with a scoop of keto-friendly ice cream: The warm mug cake paired with a cold scoop of vanilla or chocolate ice cream is irresistible.
• Top with berries: Add a few fresh raspberries or strawberries on top for a refreshing, fruity contrast.

Storage Recommendation

This mug cake is best enjoyed fresh, as it’s a single-serving dessert. However, if you have leftovers (which is rare!), you can store it in an airtight container in the fridge for up to 2 days. Reheat it in the microwave for about 15-20 seconds until warm.

Frequently Asked Questions

Can I make this mug cake without peanut butter?
Yes! You can substitute the peanut butter with almond butter or any other nut butter of your choice.

Can I make this recipe without eggs?
Absolutely! Use a flax egg (1 tbsp ground flaxseed mixed with 2.5 tbsp water) as an egg replacement.

Can I double the recipe?
Since this is a mug cake, it’s best to make one at a time. If you double the recipe, it might not cook properly in the microwave.

Nutritional Breakdown (Per Serving)

• Calories: 370
• Total Carbs: 7g
• Net Carbs: 4g
• Fat: 31g
• Protein: 12g

We’re so excited to hear about your experience with this recipe! 💬 Share your thoughts in the comments below—your feedback truly means the world to us. 😊 Make sure to follow us on Facebook for more tasty keto recipes and helpful tips to keep you inspired on your low-carb journey. Don’t forget to bookmark our site as your ultimate resource for all things keto! If you’re new to keto, our Keto Diet Plan for Beginners: Step-by-Step Guide is a must-read—it’s filled with everything you need to kick-start your journey and stay motivated.