This Keto chocolate peanut butter fudge is insanely creamy and has only four ingredients.
This fudge is one of the first recipes I posted on my website back in 2016. It was time to give it an update with more tips and details. The recipe itself was perfect as it is and remains unchanged.
I still love the creamy, chocolatey, nutty fat-fuelled goodness of this fudge and make it regularly.
Just like my cocoa fat bombs, keto peanut butter fudge or Chocolate Walnut Keto Fat Bombs, this fudge is perfect as a sweet keto snack in the afternoon or post-dinner.
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Ingredients
Traditional fudge is made with condensed milk. I have an amazing sugar free condensed milk recipe and my keto fudge is made with condensed milk.
But, this chocolate peanut butter fudge recipe contains butter to make it extra creamy.
Here are the ingredients I used:
- Butter - I chose unsalted butter. However, salted butter would give the fudge an additional flavour dimension.
- Peanut butter - Ideally, this should only contain one ingredient - peanuts. Supermarket brands often add unnecessary fillers such as palm oil or (gasp) sugar. I like the Meridian brand.
- Dark chocolate - I used Lindt chocolate with 90% cocoa solids. It contains only 7 grams of sugar per 100g bar. Considering you use one bar of chocolate to make the 30 fudge squares, it's fine by my book.
- Powdered Sweetener - Any zero-carb sugar substitutes work, such as erythritol, xylitol, allulose or Bocha Sweet.
Instructions
It is really simple to make a keto chocolate fudge. Here are the basic steps:
Step 1: Melt the butter and the chocolate. You can do this in the microwave in 30-second bursts. Or, melt them in a saucepan on the stove over low heat.
Step 2: Stir in the peanut butter and powdered sweetener.
Step 3: Pour the mixture into a small container lined with parchment paper and freeze until set.
Step 4: Cut into squares with a sharp knife.
Expert Tips
Use powdered sweetener. This way, you avoid ending up with gritty fudge. Erythritol-based sweeteners don't melt like sugar and re-crystallise as they cool.
Adjust the sweetness. Always taste the fudge mixture and add more sweetness if desired. I don't have much of a sweet tooth any more. You may prefer things a little sweeter.
Warm the knife blade by holding it under running hot water. This makes it easy to cut the squares.
Recipe Variations
Keto chocolate peanut butter fudge can be made with smooth or crunchy peanut butter.
Or give it a go with almond butter (and just rename it).
You could add a pinch of salt for an extra kick.
During the colder months, adding cinnamon or cardamom will give the sugar free fudge a festive note.
Recipe FAQs
Of course. If you decide to use unsweetened chocolate, make sure you increase the amount of sweetener accordingly.
Yes. Since sugar-free chocolate chips such as Lily's already contain sweeteners, you may not need the additional sugar substitute in the recipe.
Use coconut oil instead of butter. Choose refined coconut oil over unrefined coconut oil as it does not have a strong coconut flavor. Be aware that coconut oil is softer than butter and you have to store the fudge in the freezer rather than the fridge.
Because of its high fat content, the fudge is incredibly satisfying. One square contains 1.2 g net carbs. 2 squares would make a generous and filling keto snack.
Toppings
Why not decorate your fudge to make it taste even better? Here are a few options to choose from:
- Peanuts - for a bit of crunch
- Chopped nuts such as walnuts or pecans
- Unsweetened desiccated coconut
- Freeze-dried raspberries - for a colour pop
Storage
You can keep this low carb fudge in an airtight container in the fridge for up to 3 weeks.
Or, keep it in the freezer ready for when you feel the need for a tasty, guilt-free pick-me-up. In the freezer, it stays fresh for up to 3 months.
I love to have a freezer full with useful (=prepared) dishes for those days when you are after a quick fix, so that's where my fudge lives. It tastes fantastic frozen as well as thawed, which brings out its full glorious creaminess.
Related Recipes
- Keto Bounty Bars (Mounds Bars)1 Hours 5 Minutes
- Kinder Milk Slice32 Minutes
- Keto Coconut Bars25 Minutes
- Low Carb Protein Bars Recipe30 Minutes
Tried this recipe? Give it a star rating below!
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Recipe
Keto Chocolate Peanut Butter Fudge
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
- 3.5 oz butter 100g, unsalted
- ยพ cup peanut butter 200g
- 3.5 oz dark chocolate 100g (I used 90% cocoa solids)
- 2 tablespoon powdered sweetener or more, to taste
- optional: 1 teaspoon vanilla extract
Instructions
- Melt the butter and the chocolate. You can do this in the microwave in 30-second bursts. Or, melt them in a saucepan on the stove over low heat.
- Remove the mixture from the heat. Stir in the peanut butter and powdered sweetener.
- Pour the mix into a small container lined with parchment paper and freeze it for 30 minutes or until just set.
- Remove the container with the fudge from the freezer. Lift the fudge in the parchment paper and place it on a chopping board. Warm a knife blade under hot water and cut the fudge into squares.
- Store the fudge in an airtight container in the freezer or in the fridge.
Victoria Holland
Thank you Katrin for this wonderful recipe. I used Montezuma orange chocolate bars 100% cocoa with crunchy peanut butter absolutely delicious.
Katrin Nรผrnberger
I have the orange Montezuma chocolate in the fridge right now... so delicious. What a great idea to use it in this recipe.
Gemstone
Wow, My hubby and I both enjoyed this. I had some leftover Peanut butter chips ,just a handful and it was great. Of coสปuse it made the carb level go up a little but not like using a full sugar recipe! I. Will make this for Christmas.
Sarah Paola
I enjoyed your chocolate peanut butter fudge very much. I was wondering if I could increase the Lily's Semi-sweet chips I used and decrease the peanut butter a little bit. Do you have any suggestions for the best measurement for each to do that? I can't thank you enough for your hard work to create and share these great low carb recipes with us!
Katrin Nรผrnberger
I think changing the quantities of the ingredients is absolutely no problem. The more chocolate you use, the firmer the fudge will become when frozen.
Va "Tedi" Rankin
Keto Chocolate Peanut Butter Fudge - I haven't tried the recipe yet. I am dying to. I have a quick question: what size "small container" did you use? I was wondering about its measurements. thank you.
Katrin Nรผrnberger
When I make the recipe now, I use one of these plastic containers you get when ordering take-out food.