Making fat bombs is so simple! This keto fat bomb recipe combines chocolate with coconut oil, sweetener, spices and crunchy walnuts. Perfect for those moments when you need a quick-fix energy boost.
WHY should you make this Keto fat bomb recipe?
Fat bombs are the perfect keto friendly snack.
When I first heard about fat bombs, the idea of eating something by that name did not entice me at all. Why would anyone want to eat a bite of pure fat? Wouldn't eating fat MAKE you fat?
Quite the opposite. The aim of the keto diet is to get your body into a state of ketosis. This means it is using fat for fuel instead of carbohydrates. You can read more on the Keto diet here or here.
Research shows healthy fats such as olive oil, avocado or nuts are a great source of energy for your body. Eating fat AND sugar together is the lethal combination that WILL make you put on weight. Consuming fat alongside fibre and protein, on the other hand, is a quick way to reach and maintain a healthy weight.
These fat bombs are chocolatey, nutty, velvety-creamy and just on the right side of sweet. They contain good quality chocolate, coconut oil and walnuts.
The high fat content - cocoa butter and coconut oil - will provide much longer-lasting energy than a sugary candy bar could ever provide.
WHAT equipment do you need?
You can simply use what you have. Candy moulds work well or ice cube trays. If you don't have either, pour the liquid into a parchment-lined tray like you would a fudge. You then cut it into pieces once set.
One of the moulds I used is actually a tray that contained Toffifee - a popular German candy that my kids were given by friends for Christmas. You can see it in the image above. I'm pleased to get some good use out if it at the end 🙂
HOW do you make Keto fat bombs?
It's so simple!
- Melt chocolate and coconut oil in a water bath/microwave/on the stove.
- Add crushed walnuts, cinnamon and stevia to the mix
- Pour into a mould
- Freeze for 5 minutes until the top is just set
- Press larger walnut pieces on the top
- Return to the freezer or fridge until firm.
Recipe TOP TIP:
Use the best ingredients you can afford. I have tried cheap coconut oil before, which may be fine for frying, but will never be as tasty or indeed healthy as extra virgin coconut oil.
Same with the chocolate. I have tested using cocoa powder instead of chocolate mixed with coconut oil, and was not convinced. Instead, go for a high quality dark chocolate brand. It'll be creamier, has a high cocoa butter content and does not contain vegetable fats.
I used a brand called Lindt with 90% cocoa solids, but I have come across unsweetened (100% cocoa solids) chocolate as well, here in the UK there is a brand called Montezuma, for example. You can get it on Amazon or at Sainsbury's.
If you use unsweetened chocolate, I recommend sweeten with 2 tablespoon of powdered erythritol and see if you also need an additional 4-8 drops of stevia. Personally I don't like using too much stevia in my recipes because I don't like the metallic taste shining through. That's why I'd mix the 2 sweeteners.
If you can get hold of sugar free chocolate such as Lily's in the USA, you could use it in this recipe too. In this case you probably do not need additional sweetener at all. But as always - taste and decide!
RECIPE VARIATIONS
You can easily adapt these Keto fat bombs. If you wanted, you could add a couple of spoonfuls of walnut butter to the mix. If you have a soft spot for orange chocolate, try adding a tablespoon of orange zest.
You can swap out the walnuts for hazelnuts or even sunflower seeds or pumpkin seeds, or add a pinch of sea salt. Next time I'll toast the walnut pieces before I add them.
WHAT is a good portion size?
This depends on how big a treat you need :). My mix made 30 fat bombs, which weighed between 5 and 8 grams because I used 2 different-sized moulds.
If your fat bombs are a similar size to mine, I'd say 2 is a good portion. The nutrition in the panel below is calculated for one fat bomb weighing an average of 6.6g.
HOW do you store fat bombs?
Unlike other keto fat bomb recipes, these little beauties stay firm at room temperature. Even so, I recommend to store them in the fridge - if you hold them in your hand for too long you've go some finger-licking to do! Alternatively, you can also store them in the freezer.
Need more Keto snack inspiration? Try these cheesecake fat bombs, my chocolate peanut butter fudge or these cacao nut butter bombs!
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Recipe

Chocolate Walnut Keto Fat Bombs
from Sugar Free LondonerNote: The servings slider only changes the first amount in each line and not any subsequent amounts. Please make your own calculations where necessary.
Ingredients
Instructions
- Melt chocolate and coconut oil. You can do this in a water bath like the pros do it, in a coated pot on the stove (gentle heat! ) or in the microwave (4x 30 second bursts). If you can get hold of sugar free chocolate such as Lily's in the USA, go for it. I used 90% Lindt, but I have come across unsweetened (100% cocoa solids) chocolate as well, here in the UK there is a brand called Montezuma, for example. If you use unsweetened chocolate, sweeten with 2 tablespoon of powdered erythritol
- Crush your walnuts - I used a food processor - until you have small pieces. Keep a few larger ones to decorate the fat bombs. Dry-roast over a low heat until browned (optional).
- Add the crushed walnuts, cinnamon and stevia to the melted chocolate/coconut oil mix.
- Pour into silicone moulds or ice cube tray and freeze for ca 5 minutes until the tops are just set.
- Remove from freezer and press the larger walnut pieces on top.
- Place in the fridge for another 20 minutes or so until the fat bombs have set.
Video
Notes
Nutrition
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Andressa
OMG! Since I started keto I’ve been always fighting this feeling that my sweet tooth could lead me to failure. I’ve been holding on pretty good, but during those pms weeks... this recipe is literally heaven lol
Thank you sooo much for sharing!
Kathy
Can I use a different sweetener? I don't have liquid, can I use powdered? How much?
Katrin
of course you can use powdered sweetener. I'd try 2 teaspoons and taste to see how you like it.
gjeanieg
These are my new favorite fat bomb! So easy, too! I LOVE them! Thank you!
Marijane
Hi, Katrin,
I was wondering if I could use cocoa butter in place of the coconut oil? I have a bag of it I need to use. Also, what would the portion of cocoa butter be if using?
Katrin
Of course you could use cocoa butter - I'd use the same amount in grams as the coconut oil. This would make your fat bombs 100% firm at room temperature as well.
Gina
So good. Try this recipe, you won't regret it! Next time I'm making a double portion.
Katrin
Haha, that's exactly what I thought, too!
Nanabella
Great recipe! I prefer refined coconut oil so everything doesn't always taste like coconut every time I use coconut oil...❤️
Katrin
How interesting! Thank you for sharing 🙂
Tracey
These look amazing and I'm keen to make them. Can I just confirm you melt the chocolate and coconut oil together st the same time....thanks
Katrin
I did it separately in the microwave. But I honestly think it does not make any difference. If you do it in a microwave, do it at a medium heat and stir halfway through. The safest way is to melt chocolate in a water bath to prevent it from curdling. Gentle heat is the key 🙂
Petra
It's great to have a healthy treat sitting in the fridge. I'm not a big baker (my muffins never care to rise), but I like the look of this recipe. Will try it out this weekend!
Kimberly
Gosh, they look so good. I was wondering - can I use a different sweetener than stevia?
Steven
Maybe Monk fruit.
Sarah B
THANK YOU so much for this recipe! I've been wanting to make fat bombs for a while now. These are DELICIOUS!!