Best Keto Frozen Custard Recipe Ever

Seriously, this is the best frozen custard I’ve ever tasted, and being sugar free is just an added perk. Making good frozen custard does take some significant prep time, and this recipe is no exception, but as with all good things in life, the investment is worth it. Where many sugar free or low-carb ice creams fall short on flavor and texture, this frozen custard rises above them all. It is ice cream, not just an ice cream alternative, and is soooooo gooood! I will definitely be working on a dairy free version next!

Preparing the Mix

Frozen custard is made just like ice cream, but the mix needs to be made a day in advance (or very early in the morning). And, while on the note of how it’s made, this will require an ice cream maker: it doesn’t need to be an expensive one (our’s is the cheapest one from Walmart) , and now is a great time to pick one up, if you don’t already have one (don’t forget the rock salt! ).

Let’s begin! First, you will set up an ice bath to rapidly chill the custard mix when it’s done cooking. This is important, if you don’t stop the cook process quickly after straining, then you will have lumps of cooked yolk in your custard. Put some ice and water in a large mixing bowl and then set a medium mixing bowl into the large one. Be sure that the medium bowl is heat tolerant (metal is ideal but not necessary) . Prepare a strainer by lining with two sheets of cheesecloth (the cheesecloth is not required, but I find it helps to catch the smaller lumps of egg).

Now, in a medium saucepan add two and a quarter cups of heavy whipping cream, a half cup of almond milk, a half cup of swerve (erythritol or substitute your favorite sweetener), and 1/8 teaspoon of salt. Heat over a medium heat, stirring often.

While your cream mixture is heating, separate six egg yolks and discard the whites. Whisk the yolks well.

When the cream mixture just reaches a simmer, remove from heat. While whisking, spoon about a half a cup of the warm cream mixture over the egg yolks, very slowly. Once fully incorporated, repeat once more with more warm cream. Now is the time to add the vanilla extract: add two and a half teaspoons into the saucepan.

Then pour the yolk mixture into the saucepan, whisking to mix as you pour. Return the saucepan to the stove-top and heat over low heat stirring frequently. Continue heating until the custard thickens enough to coat the back of a metal spoon, and leave clean lines when streaked with a fingertip.

Next, pour the custard mix through the strainer that was prepared earlier and into the chilled mixing bowl. Stir the custard mix in the chilled bowl to help it cool quickly, the aim is to stop the cooking process as fast as you can.

Cover the custard mix and refrigerate for at least six hours, overnight is best.

Then prepare the frozen custard from your custard mix in an ice cream maker. For this step, follow the manufacturer’s instructions for the ice cream maker that is used. Our ice cream maker takes about 23 minutes of churning with this recipe.

When it’s done in the ice cream maker, it will still need to chill further. Transfer your frozen custard into a freezer safe container, cover and freeze for at least an hour: 3 hours gets it pretty much perfect.

And that’s it, dish it up and enjoy the best frozen custard you’ve ever had! Add toppings, flavor it, or just eat it as is, because it’s so good it really doesn’t need anything more.

Best Keto Frozen Custard Ever!

  • Servings: 12-14
  • Difficulty: Moderate
  • Print

A Simple and Amazing Frozen Custard Recipe with real ice cream taste, but low carb nutrition!


  • 2 1/4 Cups Heavy Whipping Cream
  • 1/2 Cup Almond Milk
  • 6 Egg Yolks
  • 2 1/2 tsp Vanilla Extract
  • 1/8 tsp Salt
  • 1/2 Cup Swerve (erythritol, or substitute your favorite sweetener)


  1. Line a heat tolerant strainer with two layers of cheesecloth and set over a heat tolerant bowl. set this bowl into an ice bath to chill, and set aside for later.
  2. In a medium saucepan: add cream, milk, swerve, and salt. Heat while stirring often.
  3. While cream mixture heats, whisk the egg yolks in a separate bowl.
  4. Heat cream mixture just to a simmer, about 4-7 minutes, and then remove from heat.
  5. While whisking, slowly drizzle some of the warm cream mixture, about a half cup, over the eggs yolks.
  6. Once fully mixed, repeat once more with about another 1/2 cup of warm cream.
  7. Add vanilla to saucepan.
  8. While whisking, slowly add yolk mixture to saucepan.
  9. Return pan to stove and heat over low heat until it thickens. Test thickness by dipping back of large metal spoon into mixture, it should coat it well and leave clean lines when streaked with a fingertip.
  10. Remove from heat, and pour through the lined strainer into a chilled bowl.
  11. Cover and refrigerate for at least six hours
  12. Use manufacturer’s instructions to mix in ice cream maker.
  13. Transfer to a freezer safe container, cover, and freeze for 1-3 hours.
  14. Serve! Or, you know, just eat it.


  1. Choose your heavy whipping cream carefully, different brands have different carb totals, and heavy cream is notorious for hidden carbs.
  2. The cheesecloth is not necessary, but I find it helps catch the smaller bits of egg.
  3. After one hour in the freezer, the custard will be frozen, but will likely still be very soft. It seems to be perfect after about 3 hours in the freezer.

Nutrition Information

Serving Size1/4 Cup (4 Tbsp)
Servings per BatchAbout 14
Fat15.3 g
Protein1.9 g
Carbohydrates 1.2 g
Net Carbs1.2 g

5 thoughts on “Best Keto Frozen Custard Recipe Ever

  1. Just a thought on cooking your custard. The really OLD process (way back in the day) was to get the cream hot in a double boiler. whip those egg yolks in a seperate bowl until frothy. Keep whipping as you add a spoonful of hot cream at a time to the yolks. This very gently begins to cook those yolks. When you have combined maybe a third to a half of the hot cream and the yolks are getting hot also you can return them (whipping constantly) to the double boiler and gently bring to thickness. This was always done with sugar instead of sweetner but unless the use of sweetner changes things you shouldn’t have to strain your mixture. LOVE this site! It’s beautifuly done!

    Liked by 1 person

  2. Just tried this recipe this weekend and have to say it turn d out awesome! I made a few changes out of necessity and added a couple out of choice. I didn’t have almond milk but did have a can of coconut milk, so I submitted it. Plus I used monk fruit to sweeten. I also wanted eggnog flavored custard so I added nutmeg and a couple tablespoons of rum. I also added the tablespoons of vodka (per recipe, I doubled it) to help it not freeze hard as a rock. I really like how it turned out, except the mink fruit I think adds a grittiness because I cooked the custard with it. Will experiment with sweeteners the next time we make it. Thank you for a delicious keto dessert!

    Liked by 1 person

  3. I just bought an ice cream maker for the sole purpose of this recipe! I’m excited to try. Can you double recipe and put in ice cream maker?


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