Keto Chocolate Mug Cake (2024)

Easy Keto Chocolate Mug Cake!

With just seconds of cook time and a few ingredients, you can have a fudgy, chocolatey low carb mug cake made from start to finish.

This cake only has 4 grams of net carbs, uses a handful of ingredients and is made with a couple of simple steps.

Do you enjoy making fun keto desserts? You might like keto chocolate fudge and keto brownies.

It's perfect for when those occasional emergency chocolate cravings hit, and it's gluten-free and sugar-free too.

Why you'll love this recipe

Beginning a low-carb lifestyle can take some adjustment when you have a sweet tooth, but the good news is that you can still have a sweet treat every now and then.

A low-carb chocolate mug cake is a satisfying solution, thanks to its soft and fudgy texture and decadent rich chocolate flavor.

It's made with keto approved ingredients like almond flour and coconut flour, so you can feel satisfied knowing you made a nutritious choice, that won't ruin your keto diet.

Mixing butter and egg into the batter gives this chocolate keto mug cake a fluffy texture. If you need to be mindful of dairy, you can make this dairy-free too.

A dollop of keto whipped cream, a drizzle of sugar free chocolate sauce or some sugar-free chocolate chips sprinkled on top are tasty garnishes.

Recipe Ingredients

Butter - We love using melted butter in keto cakes and it helps keep this super tender. It adds healthy fats and flavor. You can use oil if you like, but we recommend sticking with the butter.

Sweetener - Lakanto Monk fruit Sweetener and Swerve are two of our favorite keto granulated sweeteners. We haven't tried liquid stevia in this recipe yet, but if we do we will update this post.

Egg - Egg not only helps with the fluffy texture, it adds a touch of protein and fat to this recipe.

Vanilla - Even though this is a chocolate cake we like to add a touch of vanilla. It adds depth and flavor. You can always switch up the extracts to play with the flavors, if you like.

Almond Flour - We love baking and cooking with almond flour. It adds body, texture, flavor, protein, and fat.

Coconut Flour - A touch of coconut flour adds to the texture without adding too much of a coconut flavor.

Unsweetened Cocoa Powder - To take this recipe to the next level and give it it's rich chocolate profile.

Baking Powder - A little leavening agent goes a long way in helping this rise.

Have a question about the ingredients in this recipe? Please leave it in the comments below and we will get back to you.

If you don't need to eat keto, try this Gluten Free Mug Cake.

Step by step instructions

A few easy steps is all you need to make this mouthwatering mug cake.

1. Place butter and sweetener in a large microwave-safe mug (10-14 oz.) or ramekin. Heat in the microwave until butter is melted, approximately 30 seconds.
2. Add the egg and vanilla, and stir until combined.
3. Add the almond flour, coconut flour, cocoa powder, and baking powder.
4. Stir until combined and no lumps remain.
5. Microwave for 40-60 seconds or until risen and firm on the top.
6. Serve warm with keto ice cream, sugar free whipped cream, or your favorite keto frosting.

These steps match the photos above. I've also included a video showing you how easy it is to make. You can find the printable recipe card below with the quantities and steps.

How to make in the oven:

Yes, you can bake this cake in the oven. You'll want to use a ramekin and bake it at 350 degrees F, for about 10 minutes. Make sure to check it for doneness throughout, so it bakes up exactly the way you want it.

Expert tips

Don't skimp on the baking powder. A keto mug cake needs a leavening agent, so ¼ teaspoon baking powder is necessary to make your cake rise.

Otherwise, you may end up with a spongy, flat disk instead of a fluffy, springy cake.

Use a large mug and don't fill it more than half to ⅔ full. You'll avoid a mess and a cake that doesn't set in the middle.

You can make two servings by splitting your batter into two ramekins or mugs.

Always start with the lowest necessary cooking time. You can add a few seconds at a time if needed until your cake is firm in the center, but don't go over one minute.

Keep in mind that the cook time may vary depending on the size of your mug and the model of your microwave.

If you have any questions, please leave a comment below.

Working with Almond Flour and Coconut Flour:

When you work with almond flour and coconut flour, you want to make sure it's at room temperature, otherwise it will absorb more of the liquid ingredients.

You also don't want to pack it into your measuring cup or measuring spoon, otherwise you'll end up with too much and you'll have a dry crumbly mess.

Looking for other mug cake recipes? Try this protein mug cake next.

How to make dairy free

You can turn this keto mug cake into a dairy free dessert by switching out the butter for another vegan/dairy free butter of your choice.

You could also try coconut oil, but keep in mind that it may change the texture slightly.

Serving suggestions

We love enjoying this keto mug cake plain but it's also amazing with toppings:

Keto Chocolate Frosting - Although we don't have a small batch recipe for this keto chocolate frosting, you could always make up a batch and freeze the rest for future cakes.

Keto Whipped Cream - We love adding whipped cream and a few sprinkles to the top.

Keto Ice Cream - Just think about it, a warm chocolate cake with a scoop of keto frosting! Delish.

Chopped Nuts - Walnuts, almonds or pecans. You can even stir chopped nuts into your batter.

Berries - Keto-friendly fruits like raspberries, strawberries, blackberries and blueberries.

Chocolate chips - You can make your own sugar-free chocolate chips and sprinkle on top or melt them and pour melted chocolate over the top of your keto mug cake.

You can also add your favorite toppings.

Storage instructions

Not exactly sure how it's possible to have any leftovers, but if you do. Simply cover the mug and leave on the counter for the rest of the day. If you manage to not be tempted to finish it, you can then place it in the fridge for 2 to 3 days.

You can reheat your in the microwave. Simple put a small piece of butter on top and microwave for 10 seconds. The butter will stop the cake from drying out.

It can also be stored in the freezer. Ensure it is wrapped tightly with plastic wrap before placing in the freezer. Defrost in the fridge before reheating.

FAQs

How many carbs are in a Keto Chocolate Mug Cake?

A single serving of our has 4 grams of net carbs. 8.5 grams of total carbs and 4.5 grams of fiber. This recipe is a perfect fit for your Keto lifestyle.

What is a Mug Cake?

It's a cake that is made in a mug. Usually made in the microwave to quickly curb any sweet craving. It can also be baked in an oven.

Why is my Chocolate Mug Cake rubbery?

Mug Cakes can become rubbery if they are overcooked, so that's why we suggest starting with the lowest necessary cook time.

Using oil instead of butter may also lead to a rubbery texture.

Can I make Mug Cakes without Vanilla extract?

Yes, you do not 'need' the vanilla extract but it adds a depth of flavor to your keto mug cake.

More Keto Chocolate Desserts:

Keto Chocolate Cake - If you want a whole cake, you'll want to make this chocolate cake. Tender, sweet, and chocolatey, this keto chocolate cake is everything you want a chocolate cake to be, and more.

Keto Chocolate Cupcakes - These keto cupcakes are super rich and delicious. They are less expensive to make than buying a keto cupcake mix from the store, and they are low carb, sugar free, dairy-free and grain free.

Keto Chocolate Chip Mug Cookie - You're going to love the cookie version. This keto mug cookie is sweet, tender, and has the perfect amount of chocolate chips for you chocolate lovers.

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📖 Recipe