Low-Carb Coffee Cake in a Mug

What’s better than a morning cup of coffee? Well, a low-carb coffee cake in a mug right next to it. This coffee mug cake is a real treat if you are on a low-carb diet.

If you miss morning pastries like coffee cake while living a low-carb life, try this cup of coffee cake that’s 5.4g net carbs. It’s still possible to treat yourself while on the keto diet when you do so in a portion-controlled way, like mug cakes.

Coffee cake in a ramekin on a white table with coffee beans

Table of Contents

Low-Carb Coffee Cake Mug Cake

It’s easy to get really sick of eggs for breakfast on the keto diet. In fact, I believe that’s one of the biggest complaints I’ve heard from anyone I know struggling with keto foods.

Of course, microwave coffee cake is still a dessert even though it’s lower in carbohydrates. I am not saying it’s a great breakfast choice, but certainly better than a full sugar coffee cake! Give it a try and see how you feel. Perhaps coffee cup cake can work its way into your breakfast rotation on occasion.

Overhead shot of ingredients for coffee mug cake.

Keto Coffee Cake in a Mug Ingredients

(Exact measurements are in the recipe card below)

Mug Cake

Almond flour
Coconut flour
Brown sugar Swerve
Cinnamon
Baking powder
Melted butter
Non-dairy milk
Egg
Vanilla extract

Crumbled Topping

Brown sugar Swerve
Softened butter

Glaze

Powdered erythritol
Water or low-carb milk

Low-carb Coffee Mug Cake Directions

In a microwave-safe mug, mix the almond flour, coconut flour, brown sugar, cinnamon, and baking powder until well incorporated.

Dry ingredients for coffee mug cake in a dish surrounded by other ingredients.

Add the melted butter, low-carb milk, egg, and vanilla extract. Stir until smooth. Do not over mix.

Coffee cake batter in a dish with other ingredients on a white table.

Make the crumbled topping by using a fork to combine brown sugar with softened butter.

Crumbled brown sugar topping for coffee mug cake.

Add topping to the top of the mug cake.

Crumbled topping on top of batter in a dish for coffee mug cake.

Microwave for one minute and thirty seconds or until the top is opaque and fully cooked.

Overhead shot of cooked coffee cake in a mug.

Make the glaze by combining powdered erythritol with water or milk.

Drizzle the glaze on top of the finished mug cake.

Coffee mug cake with glaze on top by a tray, coffee beans, and cinnamon sticks.

Serve and enjoy! Don’t leave the fork in as your mug cake cools, it turns into a hot poker.

Fork in a coffee cake mug cake topped with glaze.

Coffee Mug Cake Recipe Notes and FAQ

Can I use a regular granular keto sweetener instead of brown sugar?

No, for this coffee cake it’s important to use a brown sugar alternative to get the full coffee cake flavor.

Fork full of coffee cake with the mug of coffee cake.

Don’t let the cake batter sit.

Do not let the batter sit for too long. Coconut flour absorbs moisture as it sits and will keep doing so the longer you leave it.

Bite taken out of coffee mug cake on a table with coffee, coffee beans, and cinnamon sticks.

Stirring the coffee cake batter.

Brown Sugar Swerve is a bit sticky and hard to mix, but the results are so very worth it. Take a little extra time to mix thoroughly incorporating the brown sugar with the rest of the ingredients.

Close up of coffee cake with crumble topping and glaze.

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