
Custard is a delicious dessert, but can you eat it while following a keto diet? The answer is yes, with some adjustments. Traditional custard contains milk or cream, eggs, and sugar, which can be substituted with keto-friendly alternatives to make it suitable for a keto diet. This involves swapping milk for cream and sugar for a keto-approved sweetener like erythritol, granulated monk fruit, or stevia. The custard can be served warm or cold and can be a tasty treat on its own or as a topping for other keto desserts. It's a versatile dessert with a rich, silky smooth texture and a heavenly taste that can satisfy your sweet tooth without compromising your keto diet.
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What You'll Learn

Keto custard recipes
Traditional custard is not keto-friendly due to its high sugar content. However, with some low-carb substitutions, it can be made keto-compliant. Here are some keto custard recipes with various cooking methods, including baking, stovetop, and microwave.
Baked Keto Custard:
This recipe uses a water bath (bain-marie) to ensure gentle cooking and a silky-smooth texture.
- Preheat your oven to 350°F (180°C).
- Grease four 4-ounce 2 or 3-inch ovenproof ramekins and place them in a large baking dish.
- In a blender or large mixing bowl, combine whipping cream, eggs, egg yolk, sweetener (e.g., Swerve, Sukrin Melis, Natvia), vanilla extract, and a pinch of salt. Pulse or whisk until smooth and well combined.
- Pour the custard mixture into the ramekins and sprinkle the tops with nutmeg, cinnamon, or a combination of both.
- Fill the baking dish with enough hot water to reach halfway up the sides of the ramekins, being careful to not get any water inside.
- Bake for 35-45 minutes, or until a knife inserted in the center comes out clean but the custard still jiggles slightly.
- Remove the custards from the baking dish and let them cool. Refrigerate until chilled and serve as desired.
Stovetop Keto Custard:
For a thinner, more delicate custard, try this stovetop method.
- Add cream and vanilla extract or bean to a small saucepan and whisk over medium heat until it reaches a low simmer. Remove from heat.
- In a separate bowl, whisk together a sweetener and egg yolks.
- Stir the yolk mixture into the cream mixture. Return the saucepan to the heat and whisk continuously until the custard thickens and coats the back of a spoon.
- For chocolate custard, whisk in 2 tablespoons of cocoa powder. For a dairy-free version, use coconut cream instead of dairy cream.
- Pour the custard into your desired serving dish and refrigerate until chilled.
Microwave Keto Custard:
The microwave method is a quick and convenient way to make keto custard.
- In a bowl, combine eggs, a sugar substitute (such as powdered Swerve), vanilla, and milk. Whisk or blend together.
- Cook the mixture in the microwave for 1 ½ minutes.
- Remove and stir well. Cook for another 1 ½ minutes, then stir again.
- Let the custard rest for 2 minutes before serving warm, or chill it in the refrigerator if you prefer it cold.
Tips and Variations:
- Custard can be served warm, at room temperature, or chilled. It can be enjoyed on its own or as a topping for other keto desserts.
- For a dairy-free version, use coconut cream instead of dairy cream.
- Experiment with different extracts like almond or orange instead of vanilla for unique flavors.
- Top your custard with fresh berries or seasonal fruits.
- Keto custard can be stored in the refrigerator for up to 2 weeks. It can also be frozen for up to 6 months.
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Sugar substitutes
Traditional custard is not keto-friendly due to its high sugar content. However, it can be made keto-compliant by substituting sugar with low-carb sweeteners. Here are some sugar substitutes that can be used to make a delicious keto custard:
- Erythritol: This is a granulated sweetener that can be used in keto custard. It is a common sugar alternative and has a similar sweetness to sugar. Erythritol provides a smooth texture without the cooling effect found in some other sweeteners.
- Monk Fruit: Monk fruit is a highly concentrated natural sweetener. It is typically combined with erythritol to balance the intensity of its sweetness. Monk fruit alone may require adjustments to achieve the desired taste profile.
- Allulose: Allulose is a granulated sweetener that creates a smooth texture in custard. It is more expensive than erythritol but lacks the cooling effect. Allulose may take longer to set and can cause the tops of baked goods to brown more easily.
- Stevia: Stevia is a widely available sweetener often used in baking. It may have a bitter taste, so it is not always recommended. Stevia is usually bulked with maltodextrin and can be found in large bags at most grocery stores.
- Swerve: Swerve is a popular sugar substitute that works well in keto custard recipes. It is a granular sweetener that blends easily and provides a balanced sweetness.
- Other Options: There are various other sugar substitutes that can be used in keto custard, such as liquid stevia, xylitol, yacon syrup, and tagatose. Each sweetener has unique properties and sweetness levels, so adjustments may be needed.
When making keto custard, it is important to ensure that the sweetener is well incorporated into the mixture before pouring it into the ramekins. The custard can be baked in a water bath to achieve a silky smooth texture, and spices like cinnamon or nutmeg can be added for extra flavour.
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Dairy-free custard
Custard is a delicious treat, but what if you're avoiding dairy? Well, there are plenty of options for making a tasty dairy-free custard.
Firstly, you can use coconut cream for a dairy-free custard. This can be the thick portion from a can of coconut milk, or you can use full-fat canned coconut milk. This option is great for those who love the taste of coconut, but it can also work for those who are not huge fans as the flavour is not overwhelming. You can also add some extra toasted coconut for a stronger coconut flavour.
Another option is to use almond milk. This can be combined with arrowroot powder and whisked with eggs, vanilla, and maple syrup to create a tasty, smooth, and creamy custard in under 5 minutes.
If you're not a fan of the idea of using eggs in your custard, you can omit them. The custard won't thicken as much and will taste more like vanilla pudding, but it is still a delicious option. You can use Bird's custard powder, which is an English, egg-free, and vegan alternative. This is essentially cornstarch, salt, and custard flavour. Cornstarch is ideal for dairy-free custard, but if you need a corn-free option, you can substitute arrowroot starch.
You can also use other dairy-free milk alternatives, such as soy milk or lite coconut milk. However, keep in mind that the results might be thinner, and some brands and types can curdle.
So, there you have it! Plenty of options for creating a delicious dairy-free custard that suits your taste and preferences.
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Custard toppings
Traditional custard is not keto-friendly as it contains a lot of sugar. However, with a few low-carb substitutions, it can be made keto-friendly. The most important thing to remember is not to overcook the custard, as this will negatively impact the texture and taste.
There are several toppings that can be added to keto custard to make a different variation. Here are some ideas for custard toppings that are keto-friendly:
Cinnamon
A warm spice usually used in desserts in fall or winter. You can either sprinkle some cinnamon on top of the custard before baking it with nutmeg or in replacement of nutmeg, or you can mix it in with the cream while preparing the custard on the stove.
Meringue
Some recipes only call for egg yolks, so you can whip up the leftover egg whites for a meringue topping.
Collagen
Food collagen peptides is a supplement that comes in a powder form and can be added to many foods. It is tasteless and bakes well, so custard is a perfect dessert to put it in.
Caramel
Caramel is a good combination with custard flavours, reminiscent of vanilla ice cream with caramel swirled through it.
Berries
Berries are a light and fresh way to bring bright summer flavours without a ton of added sugar. Strawberries, raspberries, and blueberries are great options.
Fruit
If you are not strict keto, there are other fruit options such as mango, cherries, and oranges.
Citrus
Fresh lemon or lime zest is a great addition to cut through the creaminess of the custard.
Chocolate
Dark chocolate is delicious when shaved over custard. Pair it with some berries for an extra decadent treat.
Nuts
You can garnish your custard with your choice of nuts.
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Storing and serving custard
Custard can be served warm or cold. It can be used as a topping for desserts such as fruit strudel, fruit crumble, baked apples, and trifle. It can also be served with fresh or canned fruit, or with sponge cake.
When storing custard, it is important to note that it can be kept in the refrigerator for up to two weeks if stored in a sealed container. To serve, simply let it sit at room temperature for 30 minutes.
Custard can also be frozen for up to six months. To freeze custard, place individual portions in freezer-friendly containers and store them in the freezer. When ready to serve, thaw them overnight in the fridge.
It is worth noting that the texture of custard may change during the freezing and thawing process. If the custard has split, it can be restored by heating it on low heat in a saucepan while stirring occasionally with a whisk. Adding warm milk can also help to smooth out the custard.
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Frequently asked questions
Yes, you can eat custard on a keto diet, but not traditional custard as it contains a lot of sugar. However, there are many keto-friendly custard recipes that use low-carb substitutes for sugar, such as erythritol, granulated monk fruit, granulated allulose, or stevia for baking.
There are several ways to make keto custard, but most recipes include eggs, cream, a sweetener, and vanilla extract. Some recipes also include salt. You can make keto custard in the oven, on the stovetop, or in the microwave.
You can use erythritol, granulated monk fruit, granulated allulose, or stevia for baking.
Yes, keto custard can be stored in the refrigerator for up to 4 days. It is not suitable for freezing.










































