The perfect keto lemon curd is bright, tangy and silky on its own, and equally delicious as a spread for keto toast, with scones or sandwiched inside a keto sponge cake. It also makes a thoughtful homemade gift for friends—even those who aren’t following keto.
4 Ingredient Keto Lemon Curd
This recipe is incredibly simple and only requires four ingredients. The sweetener tames the lemon’s acidity while the eggs and butter create a smooth, custardy texture. It’s easy to make and unusually hard to mess up—expect a bright, balanced curd that leaves you wanting more.
Using Fresh Free Range Eggs
Lemons and rich egg yolks combine to create that gorgeous, sunny yellow colour. If you want the most vibrant result, use fresh free-range eggs: the yolk colour will deepen the curd naturally.
Yolk colour depends largely on a hen’s diet more than anything else, but buying quality eggs supports better farming practices and often correlates with better flavour and nutrition.
I hope you enjoy this recipe as much as I enjoyed creating it. It’s one of those small, satisfying recipes you’ll return to again and again.
Related Recipes
- Keto Lemon Coconut Cake with Cream Cheese Icing
- Keto Lemon Pound Cake
- Keto Lemon Poppy Seed Cake with Blueberries
- Keto Lemon Tart with Coconut Cream
- Keto Lemon Curd Pie – The Zesty Low Carb Flavour Favourite
Recipe
3g
The Perfect Keto Lemon Curd
Ingredients
- 4 Lemons juice and zest
- 1/2 cup Erythritol (or preferred keto sweetener)
- 1/2 cup Butter
- 3 Whole Eggs
- 1 Egg Yolk
Instructions
- Place a medium heatproof bowl over a pan of gently simmering water (bain-marie). Add the lemon juice and zest, erythritol and butter. Ensure the bowl does not touch the pan bottom. Stir until the butter melts.
- Lightly whisk the eggs and egg yolk, then gradually stir them into the heated lemon mixture. Continue stirring and cook for about 10 minutes, until the curd thickens and coats the back of a spoon.
- Remove from the heat, transfer the curd to sterilised jars and refrigerate. Store in the fridge for up to two weeks.
Need A Keto Shopping List?
Check out my keto foods list with a free printable PDF and flavour pairings guide.
Tips & Notes:
This curd is great on its own, but also shines as a spread for keto toast or scones, or as a filling for cakes and tarts. Use fresh lemons for the best flavour. Store in sterilised jars and keep refrigerated.
Do You Know Your Macros?
Use a personalised macro calculator to tailor this recipe to your daily targets.
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