If you are looking for a dessert that is sweet and tangy, this low-carb mug cake with keto lemon curd is exactly what you are looking for! Not only is this mug cake low-carb it is also sugar-free and gluten-free!
The best part? This mug cake comes in at only 5.9g net carbs!
1-Minute Lemon Curd Low-Carb Mug Cake
Sweet and tangy, this keto lemon curd mug cake will blow you away. This is not your typical mug cake, but it still just as easy to make as the rest of them.
The batter of this mug cake mixes with a homemade lemon curd/custard to give your cake a tangy sponge cake texture you are going to love!
Making Keto Lemon Curd
To make this mug cake you are going to need to have a batch of my lemon meringue filling ready to go. The lemon custard/curd (whichever you call it) takes less than 10 minutes to make and will last in the refrigerator for up to a week, so it is perfect for making in advance.
If you know you won’t use all the lemon curd in a week, you can also freeze it so that it lasts longer. I like to flash freeze the curd in spoonfuls on a lined baking sheet until they are hard, then store the frozen spoonfuls in a zip freezer bag or airtight container.
Freezing the lemon curd in spoonfuls allows you to you easily grab small portion sizes of the keto lemon curd whenever you need it.
Making Lemon Curd Low-Carb Mug Cake Batter
Making the batter for this mug cake is much like my keto vanilla berry mug cake. Instead of pushing frozen berries into the batter, you will push lemon custard under the batter.
To make the batter, add your butter and cream cheese to your mug and melt it in the microwave for 20 seconds. Next, mix in the remaining batter ingredients except for the lemon curd. That will be added last.
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Melt butter and cream cheese together. -
Mix together batter -
Place lemon curd in the center. -
Cover lemon curd with batter.
Be sure to scrape the sides and bottom of the mug while you are mixing the batter. When the batter is all mixed, drop a couple of spoonfuls of the lemon curd into the center of the batter. Then use the back of a fork to carefully press the lemon curd down until it is covered with batter.
Cooking Lemon Curd Low-Carb Mug Cake
Tap the mug on the counter to remove any air bubble. Then, cook the mug cake on high in the microwave for 1 minute. If the mug cake isn’t done after 1 minute, let it cook for an additional 20 seconds. My cake only took 1 minute to cook.
You won’t be able to use a toothpick to check for doneness on this recipe since the center is gooey lemon curd. Instead, you’ll need to eyeball the cake for doneness. If the cake parts still look raw, then it probably is and needs a bit longer to cook.
No Microwave? No Problem
If you do not have a microwave (or don’t like to use them), you can still make this mug cake. You will instead want to bake your individual cake in the oven using a cupcake pan or oven-safe ramekin.
Bake the cake at 180C/350F in the oven for 12 minutes, or until it is done.
1-Minute Lemon Curd Low-Carb Mug Cake
Now that your cake is cooked, you are ready to eat it. The lemon custard will absorb into the cake leaving the center glazed with sweet, sticky lemon coating. This means you get that delicious lemon flavor with every bite.
To really dress up your cake, remove it from the mug and top it with whipped cream. If you like lemon, this mug cake is to die for!
More Low-Carb Dessert Recipes You May Like:
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1-Minute Lemon Curd Low-Carb Mug Cake
How to make a quick and tasty lemon curd mug cake in the microwave
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Servings: 1
NET carbs: 5.9g
Recipe Video (tap to play)
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Ingredients
Instructions
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Place the butter and cream cheese in your chosen microwavable mug. Microwave on HIGH for 20 seconds.
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Add the remaining ingredients apart from the lemon curd/custard to the mug and mix well.
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Drop the lemon curd/custard into the batter. Use the back of a fork or knife to push the curd into the middle of the batter until it is covered.
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Microwave on HIGH for 1:20 seconds minute. Enjoy!
Notes
My microwave is pretty powerful and only requires 1 minute, but most standard microwaves may require the 1:20 as stated in the recipe.
No microwave? No problem. Simply bake at 180C/350F in a cupcake case or muffin tray for 12 minutes.
Nutrition
Nutrition Facts
1-Minute Lemon Curd Low-Carb Mug Cake
Amount Per Serving (1 mug cake)
Calories 357.4 Calories from Fat 293
% Daily Value*
Fat 32.6g50%
Sodium 288.1mg13%
Potassium 227mg6%
Total Carbohydrates 11.5g4%
Fiber 5.6g23%
Sugar 3.7g4%
Protein 14.4g29%
Vitamin A 981.9IU20%
Vitamin B1 0.1mg7%
Vitamin B6 0.1mg5%
Vitamin B12 0.5µg8%
Vitamin C 2.6mg3%
Vitamin D 1.3µg9%
Vitamin E 0.8mg5%
Calcium 107.2mg11%
Folate 20.7µg5%
Iron 1.1mg6%
Magnesium 5.3mg1%
Selenium 13.5µg19%
Zinc 0.6mg4%
NET carbs 5.9g
* Percent Daily Values are based on a 2000 calorie diet.
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