Chewy Sugar Free Keto Toffee Recipe (2024)

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This chewy sugar free toffee recipe is so easy to make! It is buttery, contains the perfect amount of sweetness and is mixed with chocolate and toasted almonds. Only 1.8g net carbs and gluten-free.

Chewy Sugar Free Keto Toffee Recipe (1)

Missing a good toffee? This keto toffee is going to satisfy those cravings and then some. Buttery and just on the right side of sweet, it won’t send your blood sugar levels soaring like the traditional stuff.

My sugar-free toffee is mixed with chunks of dark chocolate and topped with toasted almonds.

Cut it into cubes and store in a Tupperware for when you need a little pick me up.

This English toffee recipe is chewy rather than brittle. Despite that I'd still like to call it "English" because it was created right here in London.

In the UK, toffee can be both chewy and hard. It is more of a general term for all candy made with sugar and butter.

In the US, "low carb English toffee" is basically a buttercrunch that is topped with chocolate and nuts. It is a popular holiday candy.

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  • Ingredients
  • Instructions
  • Top tips
  • FAQ
  • Variations
  • Storage
  • More keto candy recipes
  • Recipe

Ingredients

Chewy Sugar Free Keto Toffee Recipe (2)

You only need 6 ingredients to make this easy low carb toffee recipe:

Butter: The main ingredient. It should be unsalted.

Allulose: I chose allulose as my sugar free sweetener. Allulose is a rare sugar that is not absorbed by our bodies, making it zero carb. The benefit over erythritol is that it does not re-crystallise or get gritty. It's thanks to the allulose that this keto toffee stays chewy, smooth and creamy.

Salt and vanilla extract: For extra taste.

Sugar free chocolate chips: If you're based in the US, use Lily's or ChocZero. A dark chocolate with 90% cocoa solids such as Lindt is also an option. Or use my homemade sugar free chocolate chips.

Almonds: These should be chopped and toasted for extra flavor.

Instructions

This section contains step-by-step instructions and photos that show how to make this recipe. See the recipe card for full information on ingredients and quantities

Chewy Sugar Free Keto Toffee Recipe (3)

Step 1: Add the butter, sweetener and salt to a pan. Heat over a low to medium heat. Stir frequently with a spatula, until the butter melts and the allulose dissolves.

Chewy Sugar Free Keto Toffee Recipe (4)

Step 2: Continue heating, stirring occasionally, until the mix reaches 270°F and has turned a rich caramel color. Then, immediately remove from the heat and stir in the vanilla. Be careful - it will sizzle.

Chewy Sugar Free Keto Toffee Recipe (5)

Step 3: Wait 2 minutes and pour the mixture into a baking tray lined with parchment paper.

Chewy Sugar Free Keto Toffee Recipe (6)

Step 4: Wait another 3 minutes to cool, then sprinkle with the chocolate chips and allow to sit for 10 minutes covered with tin foil so the chips melt.

Chewy Sugar Free Keto Toffee Recipe (7)

Step 5: Spread the melted chocolate chips with a spatula. This allows the chocolate to sink into the caramel mix...

Chewy Sugar Free Keto Toffee Recipe (8)

Step 6: ...and sprinkle with chopped toasted almonds and an optional sprinkle of flaked sea salt.

Let the toffee cool to room temperature, then place it in the fridge to completely set. Cut into pieces and enjoy.

Top tips

Roast the almonds for extra flavor. Either pan roast (no additional fat needed) or roast in the oven. I roasted mine at 200C / 400F for 6 - 8 minutes.

Make sure you let the toffee cool to room temperature before you place it in the fridge. If the temperature difference is too sudden, you can get a thin buttery layer on top of the chocolate.

This does not happen at all when you use 1 cup of sweetener, by the way - I think the sweetener helps bind the butter. However, I still prefer using as little sweetener as possible over a sickly sweet toffee!

This recipe provides a chewy sugar free toffee. This is in part because of the allulose, but also because I used as little sweetener as possible. DO NOT use less sweetener than specified. I have tried that and it does not work.

FAQ

Do I need to use a candy thermometer?

If you don’t have one, just make sure the caramel is golden.

Can I use another sweetener?

For best results, I like to use allulose over erythritol. It just gives a smoother keto toffee and sets less hard or grainy. You can use powdered erythritol, powdered Swerve, Bocha Sweet or a brown sugar golden monk fruit sweetener if you prefer to get more of an keto english toffee brittle.

Chewy Sugar Free Keto Toffee Recipe (9)

Variations

Change the nuts: Instead of the almonds you could use different nuts such as pecans, peanuts or hazelnuts - or even sugar free dried cranberries!

Dairy-free toffee: I don't think it's as easy as replacing the butter with vegan butter. A little internet research revealed that this will cause the mix to split - check out this post. I would probably try using half vegan butter and half coconut cream.

I made a great dairy-free keto caramel using all coconut cream, and I think if you were to continue reducing it you'd end up with a decent toffee.

Storage

Cut into cubes and store in the fridge for up to 2 weeks.

Alternatively, freeze for up to 3 months.

More keto candy recipes

  • Sugar Free Peanut Brittle (Keto)
  • Keto Candied Pecans
  • The Best Keto Fudge
  • Sugar Free Truffles

Sweet tooth? Me too! Check out my new keto desserts cookbook for delicious sugar free dessert ideas.

Tried this recipe? Give it a star rating below!

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Recipe

Chewy Sugar Free Keto Toffee Recipe (14)

Chewy Keto Toffee

Katrin Nürnberger

from Sugar Free Londoner

Missing a good toffee? This Keto Toffee is going to satisfy those cravings and then some. Buttery and just on the right side of sweet, it won’t send your blood sugar levels soaring like the traditional stuff.

5 from 10 votes

Print Recipe Pin Recipe Rate

Prep Time 15 minutes mins

Total Time 15 minutes mins

Course Dessert

Cuisine British

Servings 16

Calories 155 kcal

Note: The servings slider only changes the first amount in each line and not any subsequent amounts. Please make your own calculations where necessary.

Equipment

  • 7 x 7 inch baking pan

Ingredients

  • 1 cup unsalted butter 225g, cut into pieces
  • 5.8 oz allulose 165g / ¾ cup plus 1 tbsp
  • teaspoon sea salt + more for sprinkling on top
  • 1 teaspoon vanilla extract
  • 1 cup sugar free chocolate chips 180g
  • ¼ cup toasted almonds 25g, chopped

Instructions

  • Line a 7 x 7 x 1 inch baking tray with greaseproof paper.

  • Add the butter, sweetener and salt to a pan. Heat over a medium-low heat, stirring frequently with a spatula, until the butter melts and the allulose dissolves.

  • Continue heating, stirring occasionally, until the mix reached 270°F / 132C and has turned a rich caramel colour. When it turns the right colour immediately remove from heat and stir in the vanilla. Be careful - it will sizzle.

  • Wait 2 minutes and pour the mixture into your baking tray. Wait another 3 minutes to cool, then sprinkle with the chocolate chips and allow to sit for 10 minutes covered with tin foil so the chips melt.

  • Spread the melted chocolate chips with a spatula and sprinkle with chopped toasted almonds and an optional sprinkle of flaked sea salt. Let the toffee cool, then place in the fridge to completely set. Cut into pieces and enjoy.

Notes

1.8g net carbs per serving. Makes 16 keto toffee squares.

I recommend roasting the almonds and allowing to cool before adding to the chocolate for the best flavour. Either pan roast or roast in the oven. Oven is my favourite method. 400F / 200C electric / 180C fan for 6 - 8 minutes.

This recipe provides a chewy sugar free toffee. This is in part because of the allulose, but also because I used as little sweetener as possible. DO NOT use less sweetener than specified. I have tried that and it does not work. You can, however, use MORE if you prefer - up to 1 cup. Simply taste and adjust to your preference.

You can use powdered erythritol if you prefer in a 1:1 ratio to get more of an keto english toffee brittle.

Nutrition

Calories: 155kcalTotal Carbohydrates: 5.2gProtein: 1.3gFat: 15.4gSaturated Fat: 9.2gFiber: 3.4gSugar: 0.1g

Tried this recipe? Pin it for later!Mention @sugarfreelondon or tag #sugarfreelondon!

Chewy Sugar Free Keto Toffee Recipe (2024)

FAQs

Why is my toffee chewy and not crunchy? ›

Don't hurry this gradual transformation; syrup that doesn't reach 300°F, or close to it, will make candy with timid flavor and chewy (not crunchy) texture. Think you can save time by bringing the syrup to a full rolling, popping boil in order for it to darken more quickly? Think again.

Why put baking soda in toffee? ›

Brittles and toffees accumulate small amounts of acid from the browning reactions that occur during cooking. This is one reason why the baking soda is added at the end of cooking. The soda reacts with the acid to make bubbles, and the syrup foams.

Does sugar-free candy affect ketosis? ›

Are sugar-free candies keto-friendly? Many sugar-free candies are keto-friendly. But it's always important to read the nutrition label to determine how many total and net carbs a product contains to decide if it can fit your dietary needs. One sugar substitute to limit while on a keto diet is maltitol.

What makes butter separate when making toffee? ›

If the butterfat separates out then usually this is due to the mixture being either heated or cooled too quickly, which "shocks" the mixture and causes the fat to separate out. It can also be caused by the mixture being heated unevenly (if the pan has a thin base and has hot spots).

Should you stir toffee while cooking? ›

It's important while the toffee cooks to only stir it occasionally. Constant stirring can cause the toffee to crystallize and separate. For those of you that need to know exactly how often you should stir, I would suggest erring on the side of not stirring more than stirring.

What can go wrong when making toffee? ›

Common toffee making mistakes:
  • I started with way too high of a heat. (At least, I think this was an issue.) I set my portable cooktop at 260 degrees F.
  • I stirred too quickly. I didn't realize this could be an issue.
  • I didn't add a dash of salt. They say you can save a ruined batch of toffee by adding a dash of salt.
Dec 13, 2017

What is the difference between English toffee and regular toffee? ›

English Toffee is a nationwide favorite that is easily made with only a few ingredients. The difference between regular toffee and English Toffee is one important ingredient – butter! I make English Toffee throughout the year for special occasions and it's always a big hit.

Why do you add vinegar to toffee? ›

This recipe includes a dash of vinegar which will help keep the colour of the toffee clear and bright and banish any cloudiness.

Why did a toffee fail to set despite using the correct ingredients? ›

This usually happens when the toffee mixture is heated too quickly or at too high of a temperature. Make sure to use medium heat (or medium-low) and go SLOW!

How do I satisfy my sweet tooth on keto? ›

The Best Keto Dessert Recipes
  1. Keto Chocolate Avocado Mousse.
  2. Berry Cheesecake Fat Bombs.
  3. Lemon Coconut Balls.
  4. Almond Butter Keto Cups.
  5. Vanilla Chia Seed Pudding.
  6. Keto-Friendly Chocolate Chip Cookies.
Nov 6, 2023

Is there anything sweet I can eat on keto? ›

Make a batch of keto chocolate chip cookies, keto red velvet cake, and keto brownies to get your fix. We've even re-created our favorite candies and snack aisle faves, like keto Oreos, keto peanut butter cup fat bombs, and keto copycat snickers. And if you're a Frosty fan, you'll have to try our keto Frosty!

What does cream of tartar do in toffee? ›

Adding cream of tartar when you're making candy helps prevent the creation of sugar crystals. That's why lots of icing, syrup or candy recipes call for it: it makes it so the end product doesn't have large crunchy sugar capsules.

What is the crack stage of toffee? ›

Most people agree that toffee is cooked to soft crack stage, which is at temperature of 135°C – 140°C (275°F – 284°F), or hard crack stage which occurs at temperature of 145°C – 155°C (293°F – 311°F). More precisely, this candy is usually cooked at temperatures from 140°C – 150°C (284°F – 302°F).

How to know when toffee is done? ›

Last, keep temping toffee until thermometer says 285-295...at 285 do the ice water test by dropping a dot of toffee into some ice water...it should be brittle. If so, it's done. It will be a very dark amber color. Pour into foil lined pan, put on chocolate and nuts and, VOILA!

Why won't my toffee harden? ›

If the sugar mixture is not cooked to the proper temperature (the hard-crack stage 300-310° F {149-154° C.} or if you are working in a kitchen with high humidity, chances are your candy is retaining too much moisture.

Why is my toffee still soft? ›

A ball of toffee that feels soft and squeezable will be at 'soft crack' stage. A firmer ball that's harder to shape will be at 'hard crack' stage. Some recipes cook the sugar at a lower temperature in order to make softer toffee.

What does overcooked toffee look like? ›

Toffee Making Tips + Troubleshooting

Undercooked toffee won't be anything more than a caramel sauce. But overcooked toffee will be just slightly crunchier (almost unrecognizably). So, always err on the side of over-cooking!

Why is my toffee not set and why is it's texture grainy and not smooth? ›

As the toffee cools and the molten sugar crystals become solid again, they are attracted to the 'seed' forming new lumps of tiny crystals – hence the grainy texture. This can also happen if the toffee is stirred, or agitated, after it has begun to boil or on cooling (as happened with this pink-tinted toffee).

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