Easy Keto Chocolate Mug Cake Recipe – Low Carb, Sugar-Free

Craving a rich, chocolatey dessert but want to stay on track with your keto lifestyle? Look no further than this Keto Chocolate Mug Cake Recipe – a quick, single-serve treat that’s not only low in carbs but also deliciously satisfying. Made in just a few minutes using a microwave, this recipe is perfect for those moments when your sweet tooth kicks in but you don’t want to derail your dietary goals.

Mug cakes are the ultimate in convenience – no need to preheat the oven or make a big batch of dessert. And for those on a ketogenic diet, having a quick, portion-controlled dessert like this ensures that you enjoy indulgence without guilt. Best of all, it’s made with wholesome, keto-friendly ingredients like almond flour, cocoa powder, and a sugar-free sweetener.

Let’s dive into the details of this easy and decadent low-carb dessert!

🕒 Prep Time, Cooking Time, and Other Details

• Prep Time: 3 minutes

• Active Time: 2 minutes

• Resting Time: 2 minutes (cooling)

• Total Time: 7 minutes

• Cuisine: American, Keto, Low-Carb

• Course: Dessert

• Servings: 1 mug cake

• Calories: Approx. 230 kcal per serving

🍴 Equipment Needed

• Microwave-safe mug (minimum 10 oz capacity)

• Measuring spoons

• Small whisk or fork

• Microwave oven

🧾 Ingredients

• 2 tbsp almond flour (fine blanched)

• 1 tbsp unsweetened cocoa powder

• 1 tbsp erythritol (or keto-friendly sweetener of choice)

• 1/4 tsp baking powder

• 1 egg (medium to large)

• 1 tbsp unsalted butter (melted)

• 1/2 tsp vanilla extract

• Pinch of salt

• Optional:

  • 1 tbsp sugar-free chocolate chips

  • Whipped cream or keto ice cream for topping

🍽️ Nutrition Information (Per Serving)

• Calories: 230 kcal

• Fat: 20g

• Protein: 7g

• Total Carbs: 6g

• Fiber: 3g

• Net Carbs: 3g

• Sugar: 1g

Note: Nutrition values may vary slightly depending on specific ingredient brands used.

👩‍🍳 Instructions

Step 1: Prepare Your Mug

Choose a microwave-safe mug that’s at least 10 oz to prevent overflow. Lightly grease it with butter or non-stick spray to make sure your cake doesn’t stick to the sides.

Step 2: Mix Dry Ingredients

In the mug, combine the almond flour, unsweetened cocoa powder, erythritol, baking powder, and a small pinch of salt. Use a small fork or whisk to blend them well, making sure there are no lumps.

Step 3: Add Wet Ingredients

Crack the egg directly into the mug and add the melted butter and vanilla extract. Mix thoroughly until you get a smooth, uniform batter. Be sure to scrape the sides and bottom so no dry bits remain.

Step 4: Add Chocolate Chips (Optional)

For a gooier center, stir in sugar-free chocolate chips. This step adds a luxurious melt-in-your-mouth texture, especially if you serve it warm.

Step 5: Microwave

Microwave the mug cake on high for 60 to 75 seconds. Cooking times vary by microwave, so start with 60 seconds and add extra time in 10-second intervals if needed. The cake should rise and appear set on top but still slightly soft in the center for a moist texture.

Step 6: Cool Slightly

Let the cake sit for 1–2 minutes before digging in. This allows the structure to set properly and avoids burning your mouth!

Step 7: Garnish and Serve

Top with a dollop of sugar-free whipped cream or a scoop of keto ice cream. You can also sprinkle some shaved dark chocolate or add a few berries if you’re not strictly zero-carb.

💡 Tips & Variations

• Nut-Free Option: Replace almond flour with 1 tbsp of coconut flour (since coconut flour is more absorbent). Add an extra egg yolk to maintain moisture.

• Moist Texture: Do not overcook. The mug cake continues to cook even after the microwave stops, so err on the side of undercooking if unsure.

• Flavor Boosters: Add a pinch of cinnamon, espresso powder, or a drop of peppermint extract for different flavor profiles.

• Egg-Free Version: Use 1 tbsp Greek yogurt or 1 tbsp flax egg, though the texture will be slightly denser.

🥄 Why You’ll Love This Keto Chocolate Mug Cake

• Quick Fix for Cravings: Ready in under 5 minutes, it’s the perfect solution when you want something sweet ASAP.

• Keto & Low-Carb: Only 3g net carbs per serving keeps you within your daily carb goals.

• Simple Ingredients: No hard-to-find items or artificial additives – just real, whole food ingredients.

• Portion-Controlled: Single-serve size helps avoid overeating while still feeling indulgent.

• Customizable: Whether you like it fudgy, cakey, or with fillings, this recipe adapts easily to your taste.

✅ Storage & Reheating

Though best enjoyed fresh, you can store a cooked mug cake in the fridge for up to 24 hours. Reheat in the microwave for 10–15 seconds. Avoid freezing as the texture changes significantly upon thawing.

🌟 Final Thoughts

This Keto Chocolate Mug Cake Recipe is everything you need when a dessert craving strikes but you don’t want to compromise your keto progress. Fast, easy, and irresistibly chocolatey, it proves that living a low-carb lifestyle doesn’t mean giving up indulgent treats. Whether you enjoy it post-dinner, as a midday snack, or even a breakfast treat, it’s guaranteed to hit the spot without hitting your macros.