Keto Chocolate Peanut Butter Fudge (2024)

Published: Nov 7, 2018 · Modified: Oct 19, 2023 by Katrin Nürnberger · This post may contain affiliate links · 106 Comments

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.

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

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.

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