The Perfect Keto Sweetener

Don’t bother with complicated conversion charts every time you want to make a recipe! The best way of using a sweetener is as you would sugar – if you used to love baking before keto, you will do it joyfully again without worrying with conversions graphics and tables. Just put the amount of keto sugar that feels right! Or, the exact same amount of sugar asked in the original recipe. To be able to have this natural carefree approach when low-carb and keto baking, you absolutely need to use a 1:1 sugar replacement. This is a sweetener that has the same level of sweetness as sugar.

Reasons to make your own keto sugar substitute

But why, you may be asking yourself, should I make my own when there are so many options of ready blended 1:1 keto baking sweeteners available for sale? I will give you 2 reasons:

1. You can control your ingredients:

  • You might prefer organic stevia, or stevia extracted without solvents
  • If GMO’s are a concern for you, you can choose erythritol from non-GMO corn.
  • Many brands add flavors to their sweetener blends, and although “natural flavors” are often mentioned, there is really no way of knowing exactly what they are or in which quantity they’re added.
  • No bulking ingredients, like cornstarch, or extra chemicals added. Companies do sensory evaluation tests and add all sorts of unnecessary chemicals to improve texture, smell and visual acceptance by the consumers.

2. You can save a lot of money!

The branded sweeteners are generally much more expensive than buying the pure erythritol and the pure stevia versions. And if you want to buy powdered or confectioner’s erythritol, which I super recommend for anything that’s not dissolving it in a liquid straight away, you’d have to shell out even more cash.

Bowl of erythritol stevia blend sugar replacement

Why erythritol is the best choice for the keto sugar substitute?

Erythritol is a magical keto sugar: it’s the one sugar alcohol that you don’t need to count the carbs for. Erythritol net carbs = ZERO

Really. Not one single carb from erythritol is absorbed in your body. Erythritol is is non caloric, non glycemic, and non insulinemic – it does not provoke an insulin response. You can just ignore the amount of erythritol that you add to the recipe. Count it as you would water.

But even with all these qualities, erythritol by itself is not perfect. The cons of pure erythritol are:

  1. Less than sugar sweetness, making it difficult to measure and convert, specially in baking;
  2. Difficult dissolution and strong crystallization, leading to a grainy and crunchy texture;
  3. Cooling mouthfeel, resembling mint taste;
  4. Lack of caramelization abilities.

Read on, and you’ll find out how to fix most of these problems, and how to make your erythritol exactly as sweet sugar!

Erythritol’s grainy crystals – why powdered erythritol is better

You can buy erythritol in granulated or powder form, called confectioner’s erythritol. The granulated form is by far the easiest to find, and it generally costs less, too.

When used in most recipes that are baked or cooked, mixed with other flours and powders, you won’t even notice erythritol’s crystals. But it is really hard to ignore it if added to recipes in which erythritol is the only solid ingredient in an otherwise smooth textured recipe: creams and custards, homemade chocolate, frostings.

Xylitol is another sugar alcohol that performs much better if you want a creamy smooth result, as it dissolves completely. But xylitol doesn’t come for free in your macro count as erythritol does (it has a GI of 13 and 2.4 kcal/gram), and you have to be really careful if you have pets in the house as xylitol is extremely toxic to them.

Happy puppy looking out of car window
A single xylitol chewing gum might kill a small dog. Be careful, or better yet, don’t have any xylitol around if you have canine furry friends.

For these reasons, I will still use erythritol in most of my cream recipes. I just powder the erythritol granules first, and it gets thin enough that I can’t perceive the texture. But powdering it won’t work if the recipe has not enough liquid content to dissolve the erythritol, such as homemade chocolate. In this case, you are better off with xylitol or allulose, as erythritol does not dissolve in fat and is going to be very noticeable, even if powdered.

There’s also a problem with crystalization, which derives fro the same difficultry erythritol has in dissolving. The baked item your prepared is going to keep its properties on day one and maybe even day 2, but by day 3 you’ll most likely start perceiving some crunchiness: yes, erythritol is persistent. Even after dissolved, it will start getting grainy again as the liquids around it start drying out. It’s not as noticeable in recipes that take a lot of liquid, such as cheesecakes, but it’s hard to ignore in cakes and cookies, for example.

There’s no fix for it, unfortunately. Using less erythritol helps, that’s why making it sweeter via addition of stevia is a great idea. And making it powdered gives you smaller crystals, which makes the crunchiness less… crunchy. But on the bright side… if you like crunchy cookies, erythritol is king!

Having this problem solved, as well as nature allows us, we come to another one that needs addressing:

Erythritol is less sweet than sugar. How to fix this?

As the sweetener industry have already discovered, erythritol is very good, but it is just not sweet enough, in the sense that it is not as sweet as sugar is. For use in baking, specially you you are converting recipes originally made with sugar, difference can throw your proportions out of whack.

Erythritol, in its pure form, is only about 70 per cent as sweet as sugar. If you taste it by itself, you’ll find that it is not so sweet. And if you just add pure erythritol to a baking recipe, trying to substitute it in a straight conversion for the same amount of sugar, you’ll end up with a much less sweet result than you would expect.

A large slice of olive oil and orange inverted low-carb cake.
The ultra moist orange and olive oil cake, made with the stevia and erythritol sweetener blend.

If you like to sweeten your beverages, and recently changed from plain sugar to a sweetener, it would make it for an easier adaptation if you would continue getting the same expected sweetness from the one or two teaspoons of white powder as you used to before. But if you use pure erythritol, you’ll always have the feeling that things are not as sweet as they are supposed to be.

The obvious solution, increasing the amount of erythritol by about 30 per cent, doesn’t help. It would make sense, I know. But the sweet taste feels different than that of sugar. Let’s not fool ourselves, sugar is addicting for a very good reason.

Increasing the amount of erythritol might increase its cooling effect, which is not pleasant. If you’ve never felt it, experiment putting some pure erythritol in your mouth. There’s a minty, cool feeling that is really out of place in most foods, except, well, mint flavored ones.

The solution for this conundrum is adding a tiny amount of an ultra-concentrated strong sweetener, like stevia or monk fruit, and blend it with the erythritol. This will increase the overall sweetness so that you can use it at an equal, 1:1 conversion to sugar, without having to put more erythritol, which would result in the cooling taste.

Why not use pure stevia in baking?

Pure stevia is 250-400 times sweeter than sugar, depending on the steviosides used in the extract formulation. It is so concentrated that it makes it difficult, or near impossible, to use the right quantity. Just a tip of a teaspoon is a lot sweeter than a heaping tablespoon of sugar. You can easily ruin your beverage, or recipe, with miscalculated stevia. Even the industries can get stevia mixes wrong: I have thrown away a package of flavored stevia sweetener because it would make things bitter when added to them, not sweeter.

Parallel to its excessive sweetness, stevia has this peculiar characteristic of adding a strong bitter aftertaste, which depends not only in the type of stevia, but on personal sensibilities as well. If you don’t like the taste of licorice – I cant stand it, myself – then you will probably feel it more

The best is to combine them, adding a little bit of stevia to increase the sweeteness of the erythritol, so that you don’t use so much erythritol to get the cold sensation and not so much stevia to get the bitter aftertaste – but just enough of each that you will get the same level of sweeteness as sugar and be able to substitute in recipes, and your beverages, in a one per one proportion. Problems solved!

A huge blueberry muffin.
My favorite, perfect for a keto-on-the-go breakfast: huge blueberry muffins, made in a blender!

What’s the best ratio of stevia to erythritol to make a 1:1 keto sweetener?

The sugar substitute companies are very protective of their formulations. It’s understandable, as people can give preference to a sweetener over another and become faithful to a brand.

I tried to check on different company websites (Like Pyure and Truvia, for example), but they do not disclose the proportions, in percentages, of the exact amout of stevia to erythritol used. In Pyure’s website it actually reads “Due to the proprietary nature of our products, we unfortunately cannot disclose exact percentages”. Similar to how perfume manufacturer’s don’t list all the poison chemicals on their packages.

But science came to the rescue! A group of Brazilian food scientists trying to find the ideal ratio of stevia to erythritol to be industrialized wrote a paper with their findings. They tried 3 different proportions of stevia and erythritol and made questionnaires to determine consumer’s preferences.

In the study taste experiment, they added 0.6 grams of their stevia erythritol mix in the different variations to a 50 ml cup of coffee. With this amount, they were obviously not trying to make a sugar substitute, but trying to approximate the sweeteners that come in packages with a little powder, as a dose.

Sernik: This keto version of the classical Polish dessert is lightly sweetened with this 1:1 keto sugar substitute.

Considering that a dose should equal a teaspoon of sugar – which I’ll round up to 5 grams, the amount people who sweeten 50 ml of coffee most likely use, and the amount used for each coffee was approximately 10 times less (rounding from 0.6 to 0.5 grams), we can extrapolate that they made their sweetener 10 times more sweet than sugar, at a ratio of 10% stevia to 90 % erythritol (I’m rounding up these too, but it’s close enough and easier math).

To make our keto baking sweetener as sweet as sugar, we need to use stevia in a proportion 10 times smaller than the one used in the study. So, for keto baking sweetener that tastes exactly like sugar, we’ll add stevia to erythritol at a 1% of the amount: i.e., 1 gram of stevia to 99 grams of erythritol. I do 100, because I like round numbers and can’t really tell the taste difference πŸ€·β€β™€οΈ

How to measure the ratio of erythritol to stevia for DIY sweetener blend

Let’s make it easy: Most likely the pure stevia powder you bought came with a teeny tiny spoon inside. These stevia scoops are actually 1/32th teaspoons. In my pure stevia extract package, it says that one serving size, a one level scoop, is 45 mg. So let’s round that to 0.5 gram of stevia.

I used the smallest measuring spoon I have, the 1/8th teaspoon, and put between 4 and 5 of the micro stevia scoop inside until level. I had to do this because unfortunately neither of my kitchen scales, not even the really precise one, caught to the measurement. And I wanted to give you a teaspoon measurement on top of the percentage one, to make life easier.

  • 5 grams of erythritol – add 0.05 gram of stevia – or 1/32 teaspoon, most likely the size of your stevia scoop.
  • 50 grams of erythritol – add 0.5 gram of stevia – or 1/4 teaspoon of stevia
  • 100 grams of erythritol – add 1 gram of stevia – or 1/2 teaspoon of stevia

(5 grams rounded up from 4.95 grams, 50 grams rounded up from 49.5 grams, and 100 grams rounded up from 99 grams. To satisfy my husband the math police out there.)

And so forth.

Halved high protein chocolate cupcake with peanut butter careamel frosting.
These protein packed, rich chocolate cupcakes are covered with a incredible whey and peanut butter caramel frosting.

How to make granulated erythritol and stevia blend

It’s a simple matter, it just takes some elbow grease. Just put the amount you need of each in the correct proportions in a jar and shake them – a lot – until combined. That’s it. You’ll need a jar that has enough empty space for them to combine well when shaking, though. I’d say, two thirds full is good enough.

Now you can put the mixture in your own labeled jar, and it’s ready to use in a 1:1 proportion for sugar!

How to make powdered erythritol and stevia blend

The powder form is akin to confectioner’s sugar, and I personally prefer to use this version as the full size erythritol crystals are not easily dissolved they might add a sandy cruch to the finished items. If I am going to dissolve the sweetener in liquid anyway, I use the granulated form, but for almost anything else I prefer the powdered one.

That’s why, for the sake of convenience, whenever I make a new batch of the sweetener mix I will use the opportunity to powder the erythritol as well.

Throw the erythritol and stevia in a (very dry) blender and blend them together until the erythritol turns into “confectioner’s erythritol”. Just a few seconds should be enough. I give the jar a few good shakes and blend it once more. Just to make sure the stevia is well mixed throughout.

Wait for a few minutes for the fine powder to settle before opening the blender jar, because you don’t want to eat sweetener though your nose. Believe me.

DIY Stevia Erythritol 1:1 Sugar Substitute For Keto Baking

Bowl of erythritol stevia blend sugar replacement

Erythritol alone is not sweet enough and has a cooling taste. Stevia alone can be hard to measure and bitter. Combine the two in the perfect ratio for the best homemade keto sweetener!

Prep Time: 5 minutes
Total Time: 5 minutes

Ingredients

  • 100 grams of erythritol (1/2 cup)
  • 1 gram of stevia (1/2 teaspoon)

Instructions

For granulated erythritol

  1. Add the erythritol and stevia to a jar, up to two thirds full.
  2. Close the jar.
  3. Shake the jar very well for a whole minute. Done!

For powdered erythritol

  1. Add the erythritol and stevia to dry blender jar.
  2. Put the lid on.
  3. Blend for a few seconds, until the erythritol becomes powder. Shake the jar, and blend for a couple more seconds, to ensure stevia is mixed throughout.
  4. Wait until the powder settles before opening the jar. Done!

Notes

How to adapt this recipe for different quantities of sweetener? Just divide the amount of erythritol you need in grams for 100 and add the result, in grams, of stevia. For example:

  • 50 grams erythritol: divided by 100 = 0.5 - add 0.5 gram of stevia (1/4 teaspoon)
  • 400 grams erythritol: divided by 100 = 4 - add 4 grams of stevia (2 teaspoons)

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8 thoughts on “The Perfect Keto Sweetener”

  1. This is such valuable information about keto sweeteners! I definitely want to start using the erythritol stevia blend in my baking!

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