In only 2 minutes enjoy a light and fluffy chocolate almond flour mug cake as a gluten-free, dairy-free, and protein-rich treat! This easy recipe uses simple ingredients and can easily be adapted into a low carb keto mug cake as well!

Best almond flour mug cake with chocolate
A mug cake made with almond flour is a dangerously easy way to enjoy a gluten-free dessert whenever cravings strike! Almond flour is the only speciality ingredient required, so a short trip to your kitchen and less than 2 minutes is all you will need!
Recipes made with almond flour have grown in popularity as a grain-free, gluten-free, and low carb way to modify baking recipes to fit into a speciality diet. This microwave almond flour mug cake recipe tastes so decadent, though, it’s guaranteed all will enjoy whether eating gluten-free or not!
The recipe was adapted from almond flour chocolate cake recipe by replacing peanut butter for the oil and decreasing the amounts to serve one. While oil may used interchangeably, I find peanut butter adds a hint more moisture while still keeping the crumb light and fluffy.
While almond flour doesn’t work as one to one substitute in all recipes because of its high moisture content, there are many ways to still enjoy classics, such as almond flour pie crust and oatmeal cookies made with almond flour.
Below I will show you how to adapt this gluten-free mug with almond flour into a low carb, keto, or dairy-free recipe with amazing results!
Ingredient Notes
Substitutions and variations listed below work for different dietary needs and preferences. For keto mug cake recipes see the low carb modification section. For another gluten-free option, try these other single-serving recipes – oatmeal mug cake or gluten-free microwave brownie!
- Almond Flour – Use blanched almond flour, rather than almond meal for this recipe. Unblanched meal results in a coarser texture. This works better in baking recipes, such as almond flour zucchini bread.
- Sugar – The type of sweetener used will depend on your diet. For a healthy or low carb mug cake, use 1 tablespoon erythritol, stevia, or monk fruit. Use two tablespoons coconut sugar in place of granulated sugar as well.
- Peanut Butter – Use any preferred nut butter or nutella. Alternatively, omit the peanut butter and use 1 tablespoon oil or coconut oil in its place. If replacing peanut butter with oil, omit the milk from the recipe.
- Milk – Adds moisture to the cake. For a dairy-free recipe, replace with almond milk, soy milk, or any preferred dairy-free milk.
- Egg – If you are looking for a mug cake without an egg, increase the peanut butter to 2 tablespoons and add 3 tablespoons milk
- Chocolate Chips – Omit or use sugar-free chocolate chips for low carb cake. For dairy-free mug cake, omit or use non-dairy chocolate, such as Enjoy Life brand.
how to make almond flour mug cake
(Below shows step-by-step photos and modified instructions. For the complete recipe, along with ingredient amounts, scroll down to the recipe card.)
- Grease a microwave-safe mug or ramekin with nonstick cooking spray. Whisk together the egg, sugar, peanut butter, milk, and vanilla extract.
- Stir in the unsweetened cocoa powder, baking powder and almond flour. If using, stir chocolate chips into the batter or save half to sprinkle on top halfway through the cook time.
- Place in the microwave and cook for 1 minute 30 seconds at full power. Let rest for 1 minute before eating out of mug or inverting onto a plate to enjoy.
low carb / Keto modification
For a keto chocolate mug cake follow the modifications below. This will reduce the calories to 347, 13 net carbs, and 16 grams protein.
- Replace the granulated sugar with 1 tablespoon erythritol, stevia, or monk fruit.
- If desired, use unsweetened peanut butter or almond butter. Alternatively, replace the peanut butter with 1 tablespoon melted coconut oil and omit the milk from the recipe.
- Omit the chocolate chips or use a sugar-free substitute.
topping ideas
For best taste, enjoy warm out of the microwave oven. To make this a truly decadent dessert, top with one of the suggested toppings below.
While the single serving size helps portion control, it can easily be divided into two servings, especially when adding toppings.
- Vanilla ice cream
- Fresh berries
- Nuts, such as almonds, walnuts, or candied pecans
- Whipped cream
- Chocolate sauce or hot fudge
How to tell when a mug cake is done
Testing when a mug cake is done can be a little tricky because the top sets before the bottom cooks all the way through. A toothpick inserted in the center will indicate it is done before the bottom has completed cooking.
For best results, grease the mug with nonstick cooking spray. This allows it to be easily released and lifted from the mug. Gently insert an offset spatula, knife, or fork along the side and lift up the cake a little. The bottom should be slightly moist, but not overly runny or liquidy.
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Fluffy Almond Flour Mug Cake in 2 Minutes
Ingredients
- 1 egg
- 2 tablespoons granulated sugar see recipe notes for low carb
- 1 tablespoon peanut butter, see recipe notes for substitutions
- 1 tablespoon milk or dairy-free milk
- ½ teaspoon vanilla extract
- ¼ cup almond flour
- 1 tablespoon unsweetened cocoa powder
- ½ teaspoon baking powder
- 1 tablespoon (optional) chocolate chips
Instructions
- Grease a microwave-safe mug or ramekin with nonstick cooking spray. Whisk together the egg, sugar, peanut butter, milk, and vanilla extract until smooth.1 egg,2 tablespoons granulated sugar,1 tablespoon peanut butter,,1 tablespoon milk or dairy-free milk,½ teaspoon vanilla extract
- Stir in the almond flour, cocoa powder, and baking powder, making sure everything is incorporated throughout. If using, stir in the chocolate chips or reserve half to sprinkle on top halfway through cooking.¼ cup almond flour,1 tablespoon unsweetened cocoa powder,½ teaspoon baking powder,1 tablespoon (optional) chocolate chips
- Place in the microwave and cook for 1 minute, 15-30 seconds. If adding chocolate chips, sprinkle the remaining halfway through cooking.
- To test if it is done, gently insert an offset spatula, knife, or fork along the side and lift up the cake a little. The bottom should be cooked through, slightly moist, but not overly runny or liquidy. Let rest for 1 minute before enjoying out of the mug or invert onto a plate.
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Recipe Notes
low carb / Keto modification
For a keto chocolate mug cake follow the modifications below. This will reduce the calories to 347, 13 net carbs, and 16 grams protein.- Replace the granulated sugar with 1 tablespoon erythritol, stevia, or monk fruit.
- If desired, use unsweetened peanut butter or almond butter. Alternatively, replace the peanut butter with 1 tablespoon melted coconut oil and omit the milk from the recipe.
- Omit the chocolate chips or use a sugar-free substitute.
Peanut Butter Substitute
Use any preferred nut butter or Nutella. Alternatively, omit the peanut butter and use 1 tablespoon oil or coconut oil in its place. If replacing peanut butter with oil, omit the milk from the recipe.Nutrition
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Monika says
Do you think PEANUT flour would work just the same?
Melissa Erdelac says
Hi Monika,
I haven’t tried it, but I don’t think it should be a problem since they are both nut flours.
Best,
Melissa
Fran says
I doubled the recipe. I didn’t have vanilla. I used low calorie maple syrup instead of sugar. I didn’t have chocolate chips of raisins, but it was still pretty good. I used liquid egg ( 6 T.) for 2 eggs.
Melissa Erdelac says
Thanks for sharing, Fran!
Best,
Melissa
Michelle says
Thank you for this recipe! I was craving a vanilla cake, so I left out the cocoa powder and used the vegan substitutes. For the peanut butter, I did 1 tbsp. regular peanut butter and 1 tbsp. biscoff cookie butter. I also added about 20g of birthday cake protein powder and added sprinkles! This was heavenly.
Melissa Erdelac says
Love the suggestions, Michelle! Thanks for sharing!
Best,
Melissa
Alex says
Great quick and easy gluten free dessert, will definitely be making it again!
Melissa Erdelac says
Thanks, Alex! Really appreciate you taking the time to let me know!
Best,
Melissa
Catherine McCarthy says
Best mug cake ever! Used natvia for diabetic husband. Served with strawberries and 50mls custard. Delicious. Thankyou.
Melissa Erdelac says
Thank you, Catherine! I really appreciate you taking the time to let me know!
Best,
Melissa