Keto Fudge in 10 Minutes With Four Ingredients

The ketogenic diet doesn’t mean giving up sweet treats. This keto fudge recipe requires just four ingredients and 10 minutes of active time. It uses widely available UK supermarket products, making it practical for a quick dessert fix.

Why This Recipe Works

Traditional fudge relies on sugar for texture and sweetness. This version swaps sugar for erythritol or monk fruit sweetener, which don’t spike blood glucose. The base is double cream and butter – high-fat ingredients that align with keto macros. A 30 g square contains approximately 2 g net carbs, 15 g fat, and 1 g protein.

Dark chocolate (85% cocoa or higher) provides flavour without excess carbs. Look for bars like Lindt 90% or Montezuma’s Absolute Black at Tesco for around £2.50 per 100 g. The cocoa solids also supply polyphenols linked to cardiovascular benefits in studies.

What You’ll Need

200 ml double cream (£1.20 for 300 ml at Sainsbury’s)
100 g unsalted butter
50 g powdered erythritol (Natvia works well)
100 g dark chocolate (min 85% cocoa)
Optional: vanilla extract, sea salt flakes, chopped nuts

Step-by-Step Method

1. Line a small loaf tin with parchment paper. 2. Break chocolate into pieces and set aside. 3. Melt butter in a saucepan over low heat. 4. Add cream and sweetener, stirring until dissolved (about 3 minutes). 5. Remove from heat, add chocolate, and stir until smooth. 6. Pour into the tin and chill for 2 hours. 7. Cut into 16 squares. Store refrigerated for up to a week.

What This Means in Practice

This recipe fits easily into a UK keto lifestyle. The ingredients are shelf-stable – stock up when Aldi has its monthly chocolate promotions. In winter, the fudge makes a satisfying treat with a cup of tea after a walk. Each batch costs roughly £4.50 total, working out to about 28p per portion.

For those tracking macros precisely, note that erythritol carbs don’t count toward net carbs. The keto adaptation timeline varies, but most people find sugar cravings diminish after a few weeks.

Frequently Asked Questions

Can I use coconut cream instead of double cream?

Yes, but the texture will be slightly grainier. Full-fat coconut cream works for dairy-free versions. The fat content should be at least 60% for best results.

Why did my fudge turn out oily?

This happens if the chocolate overheats. Always melt butter first, then add cream off the heat before stirring in chocolate. Using a bain-marie prevents separation.

Is this suitable for people with type 2 diabetes?

While sugar-free, anyone managing blood glucose should consult their GP or diabetes team. The keto diet and insulin resistance relationship is individual.

The Bottom Line

This keto fudge proves you don’t need sugar for indulgence. With four ingredients and minimal prep, it solves sweet cravings without derailing low-carb goals. The method scales easily – double the batch for gatherings. If you’d rather not do the macro maths yourself, the Keto Dieting app does it for you on Google Play and the App Store.

Educational only — not medical advice. This article is for general information. Speak to your GP before changing your diet, especially if you have type 1 or type 2 diabetes, kidney or liver disease, are pregnant or breastfeeding, or take medication for blood pressure, cholesterol, or blood glucose.

References

Kosinski C, Jornayvaz FR (2017). Effects of Ketogenic Diets on Cardiovascular Risk Factors: Evidence from Animal and Human Studies. Nutrients. https://doi.org/10.3390/nu9050517
Paoli A, Rubini A, Volek JS, Grimaldi KA (2013). Beyond weight loss: a review of the therapeutic uses of very-low-carbohydrate (ketogenic) diets. European Journal of Clinical Nutrition. https://doi.org/10.1038/ejcn.2013.116