This Keto Chocolate Mug Cake is your quick fix for chocolate cravings — rich, fluffy, and perfectly sweet without the sugar. Made in minutes with simple keto ingredients, it delivers all the indulgence of a classic dessert without derailing your low-carb goals. Warm, comforting, and effortlessly satisfying, it’s the ultimate single-serve treat when you need something sweet fast.
About This Recipe
When chocolate cravings hit, you don’t always have the time or patience to bake a full cake. That’s where the Keto Chocolate Mug Cake comes in — a rich, fluffy, single-serve dessert you can whip up in just minutes using your microwave. It’s the perfect balance of indulgent and practical, giving you all the flavor of a decadent chocolate cake without the carbs or the wait.
This recipe is built on keto pantry staples like almond flour, cocoa powder, egg, and butter, combined with a keto-friendly sweetener to create the right sweetness without sugar. The microwave does all the work, turning a simple batter into a moist, spongy cake in under two minutes. The result is a warm, chocolatey treat that feels like comfort food but keeps you firmly on track with your low-carb lifestyle.
What makes this mug cake especially great is its versatility. You can enjoy it plain, top it with sugar-free whipped cream, drizzle with a little peanut butter, or even add sugar-free chocolate chips to the batter for extra richness. Each variation gives you a slightly different dessert, making this recipe something you’ll want to keep coming back to.
From a keto perspective, it’s perfectly balanced: almond flour keeps carbs low, cocoa adds deep chocolate flavor, and butter or coconut oil provides the fat that helps keep you full. Unlike store-bought low-carb desserts, this one uses simple, clean ingredients you control, so you always know what’s going into your body.
It’s also an excellent choice for portion control. Instead of baking a whole cake (and being tempted to eat half in one sitting), you make a single serving that satisfies the craving and is gone in a few bites. That makes it a smart option for anyone practicing moderation or trying to stay consistent on keto without feeling deprived.
Whether it’s a late-night craving, a quick after-dinner dessert, or even a sweet afternoon snack, this Keto Chocolate Mug Cake is proof that staying low-carb doesn’t mean missing out on indulgence. It’s fast, it’s simple, and it’s everything you want in a chocolate dessert — without the sugar.
Why You’ll Love This Recipe
- Single-serve dessert ready in minutes
- Rich chocolate flavor with fluffy texture
- Low-carb, gluten-free, and sugar-free
- Easy to customize with mix-ins or toppings
- Perfect for portion control and quick cravings
Ingredients
- 3 tbsp almond flour
- 2 tbsp unsweetened cocoa powder
- 2 tbsp powdered erythritol or monk fruit sweetener
- 1 large egg
- 2 tbsp butter or coconut oil, melted
- ½ tsp vanilla extract
- ½ tsp baking powder
- Pinch of salt
- Optional: 1 tbsp sugar-free chocolate chips
Instructions
- In a microwave-safe mug, whisk together almond flour, cocoa powder, sweetener, baking powder, and salt.
- Add egg, melted butter, and vanilla. Mix until smooth.
- Stir in chocolate chips if using.
- Microwave on high for 60–90 seconds until cake is set but still slightly soft in the center.
- Let cool for 1–2 minutes, then top with whipped cream or your favorite keto topping.
Nutrition (per serving)
- Calories: ~320
- Fat: 28g
- Protein: 10g
- Net Carbs: 5g
- Fiber: 4g
FAQ
- Can I bake this in the oven instead of microwaving?
Yes — bake at 175°C (350°F) for about 12–15 minutes. - Can I use coconut flour instead of almond flour?
You can, but use only 1 tbsp as coconut flour is more absorbent. - Can I make this dairy-free?
Yes — use coconut oil instead of butter and a dairy-free whipped topping. - Can I meal prep this?
Since it’s a single-serve dessert, it’s best made fresh, but you can pre-mix dry ingredients for quick use.
Variations & Substitutions
- Add peanut butter or almond butter swirl.
- Mix in sugar-free chocolate chips or chopped nuts.
- Top with sugar-free caramel sauce or berries.
Serving Suggestions
- Top with whipped cream and chocolate shavings.
- Serve with fresh strawberries for a fruity twist.
- Pair with a cup of coffee for the ultimate treat.

Keto Chocolate Mug Cake (Dessert)
Ingredients
- 3 tbsp almond flour
- 2 tbsp unsweetened cocoa powder
- 2 tbsp powdered erythritol or monk fruit sweetener
- 1 large egg
- 2 tbsp butter or coconut oil (melted)
- ½ tsp vanilla extract
- ½ tsp baking powder
- Pinch of salt
Optional
- 1 tbsp sugar-free chocolate chips
Instructions
- In a microwave-safe mug, whisk together almond flour, cocoa powder, sweetener, baking powder, and salt.
- Add egg, melted butter, and vanilla. Mix until smooth.
- Stir in chocolate chips if using.
- Microwave on high for 60–90 seconds until cake is set but still slightly soft in the center.
- Let cool for 1–2 minutes, then top with whipped cream or your favorite keto topping.
Did you make this recipe?
I’d love to hear from you — leave a comment below and tell me how it turned out, what you liked, or if you made any tweaks!
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