Craving dessert but short on time and carbs? This Keto Chocolate Mug Cake is your instant solution—moist, chocolatey, and perfectly portioned for one! Whip it up in under 5 minutes with everyday keto pantry ingredients and enjoy a warm, decadent treat without the sugar or guilt. Whether you want a late-night snack, a healthy after-dinner dessert, or an afternoon pick-me-up, this recipe brings bakery-style chocolate cake straight to your microwave.
Why You’ll Love This Recipe
- Ready in 5 Minutes: Super-fast prep and microwave cook—no oven required.
- Low-Carb & Sugar-Free: Keep your keto goals and enjoy dessert at the same time.
- Rich & Chocolaty: Satisfies sweet cravings without crash or guilt.
- Single Serve: Perfect portion control for mindful indulging!
Ingredients Explained
3 tablespoons almond flour
Keeps carbs low with delicious, cakey texture (avoid coconut flour for moisture).
1 tablespoon unsweetened cocoa powder
Deep chocolate flavor without sugar.
1 tablespoon granulated erythritol or monk fruit sweetener
Keto-safe, replaces traditional sugar.
1 egg
Adds structure and classic cake texture.
1 tablespoon melted butter (or coconut oil for dairy-free)
Gives richness and soft crumb.
1/2 teaspoon baking powder
Helps mug cake rise to a fluffy finish.
1/2 teaspoon vanilla extract
Adds warmth and gourmet flavor.
Pinch of salt
Balances sweetness and brings out chocolate notes.
Optional:
- Keto chocolate chips
- Dollop of whipped cream (sugar-free)
- Sprinkle of chopped nuts or berries

Step-by-Step Instructions
- Mix: Stir almond flour, cocoa powder, sweetener, baking powder, and salt in a microwave-safe mug.
- Add Wet Ingredients: Whisk in egg, melted butter (or coconut oil), and vanilla until you get a smooth batter.
- Microwave: Cook for 60–80 seconds (see notes)—cake should be set but moist.
- Top: Add chocolate chips, whipped cream, or nuts if you like.
- Enjoy: Spoon straight from the mug for warm, rich cake with zero clean-up.
Tips for Success
- Do not overcook! Mug cakes dry quickly; start at 60 seconds and add more time if needed.
- Let cool 1 minute before eating for best texture (and so you don’t burn your tongue!).
- Double for Date Night: Make two mugs for cozy, shareable treats.
- Make dairy-free: Swap butter for coconut oil; use milk-free chocolate chips.
Equipment Needed
- Microwave
- Mug
- Spoon or small whisk
Variations
Nutty Chocolate: Add 1 teaspoon almond butter or peanut butter to the batter.
Mocha Mug Cake: Stir 1/2 teaspoon instant coffee for a caffeine/chocolate blend.
Berry Bliss: Fold in sliced strawberries or raspberries before microwaving.
Serving Suggestions
- Pair with a keto latte or tea for a satisfying snack.
- Top with fresh berries for color and extra nutrition.
- Drizzle with melted sugar-free chocolate for more decadence.

FAQs
Can I bake in the oven?
Yes! Bake in an oven-safe ramekin at 350°F (175°C) for 12–14 minutes.
Can I use coconut flour?
Stick to almond flour for a moist crumb; coconut flour makes it dry unless adjusted.
Can I make it nut-free?
Swap almond flour for sunflower seed flour for similar results.
Final Thoughts
This Keto Chocolate Mug Cake is a game-changer for quick dessert cravings—simple, delicious, and carb smart. Satisfy your sweet tooth anytime, and never feel deprived again on keto!