When you crave a brownie, you crave a brownie. A chocolate mug cake simply won’t do it. Brownies have a different texture and dessert experience overall. This indulgent keto mug brownie for one is sure to satisfy that craving without completely blowing your carb count for the day.
Instead of making a whole sheet of keto brownies, make this brownie mug cake that’s portion controlled for one person. See how you can treat yourself with this low-carb dessert in about five minutes.

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Low-carb Mug Brownie for One
Coming in at 7.2 net carbs, this brownie mug cake is a rich dessert for one or even two should you choose to share. I like to save this recipe for heavy workout days or split it with my husband to make it easier to fit into my macros for the day.

Keto Mug Brownie Ingredients
Here’s what you need to make this mug brownie. The exact measurements are in the recipe card below.
- Almond flour
- Cocoa powder
- Low-carb sweetener
- Salt
- Baking powder
- Low-carb milk substitute
- Butter
- Vanilla extract
- Keto chocolate chips
Brownie in a mug directions
In a microwave-safe mug or dish that’s at least 8 ounces, stir together the almond flour, cocoa powder, granulated erythritol, salt, and baking powder until well combined.

Add in the milk, melted butter, and vanilla. Stir until smooth.

Gently stir in one tablespoon of the chocolate chips.

Microwave for one minute and thirty seconds or until the top is opaque and cooked through.
Do not overcook! See notes below on why you want it to look undercooked and let it set.

Top the mug brownie with the remaining tablespoon of chocolate chips or melt them to use as a drizzle. Do a little of both!

Microwave mug brownie recipe notes and FAQ
Can I make this recipe ahead of time?
This mug brownie is best served warm straight out of the microwave. Of course, let it cool enough to avoid burning your tongue, but it’s the tastiest while it’s still warm.
The beauty of mug desserts is to whip them up quickly when the craving strikes. No need to make any of them ahead of time due to their simple nature.

Do not overcook!
It’s extra important for this recipe that you do not overcook it. In fact, you want it to look under cooked. Let it set for about a minute after microwaving and it will set nicely. The end result when cooked correctly is a rich and moist brownie-like texture, not cake, which is the goal.

Can I replace the sweetener?
Yes, you can use your choice of keto sweetener in place of erythritol.

Can I replace the almond flour?
It’s not recommended replacing the almond flour with this mug brownie. This recipe was tested and designed to get a good brownie texture. Altering the flour could result in throwing off the overall flavor and texture of this mug dessert.

Be sure to share this with your friends and family living a low-carb life!
More Tasty Cakes to Try
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Let me know how you like this low-carb brownie in a mug!
