Low-Carb Mug Cake Recipe (5-Minute Keto Dessert) 2026

Low-Carb Mug Cake – The Perfect Quick Keto Dessert

If you’re craving something sweet but want to stay committed to your healthy lifestyle, this Low-Carb Mug Cake is the perfect solution. Ready in just five minutes, this soft, moist, and delicious single-serve dessert is ideal for anyone following a keto or low-carb diet.

This Low-Carb Mug Cake is made with simple pantry ingredients like almond flour, erythritol, butter, and egg. It’s completely sugar-free, gluten-free, and incredibly satisfying. The best part? You don’t need an oven—just a microwave and your favorite mug.

Whether you’re new to keto or a long-time low-carb enthusiast, this easy Low-Carb Mug Cake recipe will quickly become your go-to dessert.

Why You’ll Love This Low-Carb Mug Cake

Ready in 5 minutes
Only 3–4g net carbs
Perfect single serving
Keto-friendly and gluten-free
No refined sugar
Minimal cleanup

Unlike traditional cakes loaded with flour and sugar, this Low-Carb Mug Cake keeps your carb intake under control while satisfying your sweet cravings.

Ingredients for Low-Carb Mug Cake

To make this soft and fluffy Low-Carb Mug Cake, you’ll need:

2 tablespoons almond flour
1 tablespoon unsweetened cocoa powder (optional for chocolate flavor)
1 tablespoon powdered erythritol (or monk fruit sweetener)
1/4 teaspoon baking powder
1 tablespoon melted butter (or coconut oil)
1 large egg
1/4 teaspoon vanilla extract
1 tablespoon unsweetened almond milk
A pinch of salt

These ingredients ensure your Low-Carb Mug Cake stays moist, flavorful, and keto-approved.

How to Make Low-Carb Mug Cake

Step 1: Prepare the Mug

Lightly grease a microwave-safe mug with butter or cooking spray.

Step 2: Mix Dry Ingredients

Add almond flour, cocoa powder, erythritol, baking powder, and salt directly into the mug. Stir well to combine.

Step 3: Add Wet Ingredients

Crack the egg into the mug. Add melted butter, vanilla extract, and almond milk.

Step 4: Mix Thoroughly

Stir until the batter is smooth and lump-free. Make sure everything is well incorporated for the best Low-Carb Mug Cake texture.

Step 5: Microwave

Cook on high for 60–90 seconds. Microwave times may vary. The center should be set but slightly soft.

Step 6: Cool & Enjoy

Let your Low-Carb Mug Cake cool for 1 minute before eating. Add sugar-free whipped cream or a few berries if desired.

Nutrition Information (Approximate)

Per serving:

Calories: 280
Total Fat: 24g
Protein: 10g
Total Carbohydrates: 5g
Net Carbs: 3–4g

This makes the Low-Carb Mug Cake perfect for keto macros.

Tips for the Best Low-Carb Mug Cake

Do not overcook; it can turn dry quickly.
For a vanilla version, skip cocoa powder.
Add sugar-free chocolate chips for extra richness.
Use coconut oil for a dairy-free Low-Carb MugCake.
Let it rest after cooking—texture improves as it cools.

Variations of Low-Carb Mug Cake

1. Peanut Butter Version

Add 1 teaspoon natural peanut butter for a nutty twist.

2. Lemon Mug Cake

Replace cocoa with lemon zest for a refreshing citrus flavor.

3. Cinnamon Spice

Add a pinch of cinnamon for warmth and depth.

No matter the variation, this Low-Carb MugCake stays low in carbs and high in flavor.

Who Should Try This Low-Carb Mug Cake?

Keto dieters
Low-carb lifestyle followers
People reducing sugar intake
Gluten-sensitive individuals
Anyone wanting a quick dessert

This Low-Carb MugCake is perfect when you want dessert without guilt.

Frequently Asked Questions (FAQ)

1. Is this Low-Carb MugCake keto-friendly?

Yes, this Low-Carb Mug Cake uses almond flour and sugar-free sweeteners, making it fully keto-approved.

2. Can I make this Low-Carb MugCake without egg?

Yes, you can use a flax egg (1 tablespoon flaxseed meal + 2.5 tablespoons water). Texture may vary slightly.

3. Can I bake this instead of microwaving?

Yes, bake at 350°F (175°C) for 10–12 minutes in an oven-safe ramekin.

4. How many carbs are in this Low-Carb MugCake?

It contains approximately 3–4 grams of net carbs per serving.

5. Can I prepare this Low-Carb MugCake ahead of time?

It’s best enjoyed fresh, but you can mix dry ingredients in advance for convenience.

Final Thoughts

This Low-Carb MugCake proves that you don’t need sugar or traditional flour to enjoy a delicious dessert. In just five minutes, you can have a warm, fluffy, and satisfying treat that fits perfectly into your keto or low-carb meal plan.

If you’re serious about maintaining your diet while enjoying sweets, this Low-Carb MugCake is a must-try recipe. Quick, simple, and incredibly delicious—your cravings won’t stand a chance.