These Sugar-Free Mocha Cups (keto custard) are a super simple way that you can enjoy a chocolate and coffee sweet treat and stay on track with your keto diet!

Don’t feel like you have to limit yourself just because you’re limiting your carbs! This treat is one that you can enjoy without guilt! 

What I love about low-carb mocha custards, is the fact that there is no added sugar and made with simple ingredients. I absolutely love the classic combination of dark chocolate, creamy custard, and a good coffee.

Can you eat keto desserts?

Feeling as though you’re limited on sweet treat options can be discouraging. So it’s time that you give your taste buds a wake-up call with these delicious, healthy sugar-free mocha cups.

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These mocha cups are hands down delicious and each spoon is a piece of coffee heaven. By making sure your keto desserts fit within your daily carb limit AND portion controlling them you can still enjoy chocolate desserts and stay on track with your keto diet.

Portion control is easy because they are single-serve desserts and you can even keep them in the freezer so you’re not tempted to eat 2 or 3.

And you can sit there enjoying every single bite knowing that you’re not busting your eating habits or lifestyle by indulging in this treat. That, my friends, is a total win. 

Easy sugar-free keto mocha custards

What is instant coffee?

Instant coffee is a dream come true. While some people tend to shy away from it because it’s not actually brewed, instant coffee has the same great taste and flavor as other coffee options.

For this recipe, you add the instant coffee and cook the sugar-free mocha cups on the stovetop. But for everyday use, instant coffee can easily be added to a hot cup of water to give you that instant coffee fix that you’re needing to start your day. 

What is a latte, espresso or a mocha?

Great question.

Many people are confused by all the varieties and options available at a coffee shop. Ordering coffee seems to have become so complicated.

An espresso shot is a single shot of ground coffee beans extracted with hot water. -single shot – 0.5g carbs

A latte is a single or double shot of espresso with the addition of steamed and frothed milk. This large volume of milk can be as much as 20g carbs from the milk alone! – medium 16fl oz – 20.3g carbs

Mocha (or sometimes called a mochaccino) is espresso with steamed frothed PLUS cocoa and sometimes sweetener. Many cafes just add cocoa syrup which will add even more carbs and sugar to your day. – medium 16fl oz – 53.2g carbs

The best way to order coffee

See all the coffee charts

For me, I ditched the milky lattes and flat whites as soon as I realized how high carb they are. if you’re unsure how to order your keto coffee, the carbs in coffee charts will show you exactly which to enjoy and what to avoid.

Now, my regular order is an Americano (long black) with a side of hot water and heavy pouring cream. – 2g carbs AND I manage to get 2 cups of amazing coffee for my $$$.

Easy keto brunch

While keto coffee desserts are delicious to enjoy on their own, why not have a fun breakfast or brunch date with your friends and have these are the main event!

Now that we’ve got your mouth-watering, it’s time to think of other fun ways that you can enjoy these sugar-free mocha cups! 

When you find something this good and delicious, you need to make certain that you share it with everyone that you love. 

Personally, I love these for a real after-dinner treat.

More sugar-free mocha desserts

If you love the taste of mocha or coffee, you’re in luck. I have a ton of amazing mocha and coffee recipes that can keep this sugar-free coffee taste and flavor going all season long! 

Sugar-free mocha mousse recipe

Sugar-free mocha cups. You can enjoy a chocolate and coffee sweet treat and stay on track! 
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Cuisine: Gluten Free, Grain free, Keto, LCHF, Low Carb, No Sugars, Wheat Free
Keyword: Sugar-free mocha cups
Prep Time: 10 minutes
Total Time: 10 minutes
Servings: 6
Calories: 267kcal
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  • 250 ml heavy whipping cream
  • 3 tbsp granulated sweetener, of choice or more to your taste
  • 1 tbsp instant coffee
  • 100 g 90% dark chocolate broken into pieces
  • 2 eggs – medium medium


  • In a small saucepan, warm together the heavy cream, instant coffee and sweetener on a low/medium heat. Do not boil.
  • Break the chocolate into pieces and add to the warm cream, stirring until the chocolate has melted. Remove the saucepan from the heat.
  •  In a small bowl, whisk the eggs. Add the eggs slowly to the warm chocolate/coffee/cream, whisking continuously.
  • Pour the mocha mix into 6 little espresso cups and place them in the fridge for at least 2 hours to set.
  • Garnish with shredded/grated chocolate.


Serving: 1cup (makes 6)Calories: 267kcalCarbohydrates: 6.6gProtein: 4.7gFat: 25.2gFiber: 2.2gSugar: 2.6gVitamin A: 690IUVitamin C: 0.2mgCalcium: 47mgIron: 2.3mg

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Recipe Rating


  1. 4 stars
    Fab recipe, thanks!
    But in your header, don’t you mean, enjoy WITHOUT guilt??

  2. These are very good and quick to make. When I printed out the recipe I noticed that the ‘Print Version” no longer includes a picture / photo of the recipe which I really like to have. When I return to the recipe at a later date it’s very helpful to have a photo, even if a small one.

  3. 5 stars
    I just wanted you to know that you are one of the best sites ever!!! Thank you. I have the first books you put out and now have a binder full of your recipes from your site. You rock!!!

    1. Aw … Dorothy, you have just made my day. I am thrilled that my recipes are helping you and you are enjoying them. Thank you for taking time out to write such a wonderful and kind comment today 🙂

  4. Hi there, this looks delish! My husband is trialling dairy free and I was wondering if I could make these successfully with coconut cream instead?

    1. I can’t say with certainty, but I think that would work. It will have a coconut flavour but if you’re OK with that, then give it a whirl and please come back to let us know how they turned out.

  5. Hello quick question?
    How long can I keep these in the fridge for?

  6. It appears to me that the main reason carbs are “low” in this recipe is because the serving size is very small. The serving size is 1/4 Cup. The recipe calls for serving this in espresso cups, which are tiny by American/Starbucks standards – typically holding only between 2 and 3-fluid ounces of liquid – while our coffee cups are six to eight ounces and mugs are even larger capacity. This serving will seem very small unless you are accustomed to servings in demitasse cups. The more I think about it, the serving size would be about as fulfilling as a truffle. Delicious, no doubt, and hard to eat just one.
    In response to another comment, instead of dairy cream, you might want to try Cashew milk. I think that has the lowest calories of any nut milk I have found and the flavor is milder or more subdued than, say, coconut or almond, in my opinion.

    1. If you have ever had a really good quality decadent chocolate mousse, you know they are served in small cups. And part of the way low-carb and keto works is by increasing the fat content so you are full and satisfied with smaller meals. So you can happily say goodbye to huge portion sizes and overeating. LCHF is filling, healthy, decadent and most importantly, delicious 🙂

  7. Hi There – made these delicious treats last night for guests. Unfortunately they never “set” and remained runny which was so disappointing. Any ideas what I did wrong?
    PS – we “drank” them anyway!!

    1. Hmmm, I’m not sure what happened, the chocolate and cream alone are usually enough to become a type of firm ganache when cool. The addition of the eggs helps it turn to a smooth custard. I wonder if your eggs were too large or the mixture wasn’t hot enough when adding the eggs so it didn’t have the ability to thicken the custard?