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Easy Microwave Lemon Curd

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Microwave lemon curd is the easiest and most stress-free homemade lemon curd recipe you’ll ever try. With just a few simple ingredients, you’ll end up with a super smooth, super thick lemon curd that is perfect for filling, spreading and topping desserts, breakfast, and anything else that takes your fancy!

Microwave lemon curd in a ribbed glass jar, with a silver spoon on a purple background.

You know those recipes that you try once, and immediately you know that they’re so good that you’ll never need to try another recipe for it ever again? Because you’ve found “The One”. This delicious lemon curd is definitely The One for me.

This recipe was given to me by a family friend, Barbara, so in our house, it’s known as Barb’s Lemon Curd. You’re welcome to call it that, or Microwave Lemon Curd or Easy Lemon Curd, or The Best Lemon Curd Ever but whatever you call it, it always tastes amazing and can be used in so many different ways.


  • This easy lemon curd recipe is super easy to make, using just four ingredients.
  • It’s made in the microwave, so no need to worry about it catching or burning on the bottom of a saucepan, or fussing about with a double boiler.
  • It’s sweet and tangy and SO versatile, elevating everything from lemon desserts to a bowl of yoghurt into something super special.
  • If you only need a small batch of lemon curd, you can easily halve the recipe.
  • Uses whole eggs, so no leftover egg whites.

What is Lemon Curd?

If you’ve never made lemon curd before and you don’t know what it is, it’s a sauce made with lemon juice and thickened with eggs, almost like a lemon custard. It’s tart but also sweet (and you can adjust both the sweetness and the acidity to your liking) and it’s a super versatile recipe to have on hand when you’ve got a few lemons and need a little “something” to jazz up a dessert.

Lemon curd is also sometimes known as “lemon honey”, which is maybe a slightly more appetising name, but I’ve always known it as lemon curd.

Ingredients

You only need these four ingredients to make microwave lemon curd:

The lemon curd ingredients in white bowls on a grey background - lemons, butter, sugar and eggs.

🍋 Lemons – The number of lemons you’ll need for this recipe will depend on how big they are. I usually use around four medium-sized fresh lemons, although our lemon tree also grows some extremely large lemons, so I have been known to only need two. If you’re in a real pinch, you could use bottled lemon juice instead, but you will always get the best flavour from fresh lemon juice and lemon rind.
🍋 Eggs – We’re using whole eggs here, and I like to use large eggs, so if your eggs are much smaller you may need to add an extra one or you’ll have a slightly less thick curd.
🍋 Sugar – Caster sugar is handy to use in this recipe as it will dissolve faster, but if regular granulated white sugar is what you have, then that will be fine too.
🍋 Butter –
I prefer to use unsalted butter in curd recipes. They just really don’t seem to need salt.

Microwave Tips

As with any microwave recipe, you may need to adjust the cooking time and power level depending on your microwave.

One of the keys to microwave lemon curd (or any lemon curd, for that matter) is to heat it gradually after the eggs go in, to stop them from becoming scrambled eggs.

The best way to do that is to use low-medium power and cook the curd in short bursts. After each burst, give it a good stir. This keeps the temperature more even throughout the mixture and stops any “hot spots” from scrambling.

Having said that, if you do see a few small lumps or little bits of egg in the lemon curd as it cooks, don’t panic! You can strain out any little bits once the curd is done cooking.

If your microwave doesn’t have a low power option, then just cook the curd in shorter (20-30 second) bursts and stir it more often.

How to Make Microwave Lemon Curd

Start by zesting the lemons. A fine grater like a Microplane is best so you don’t end up with any big pieces of zest in your teeth. If you only have a coarse grater, then I recommend putting all of the lemon zest into the curd mixture at the start and then straining it all out later. You will get all of the flavour, but not the pieces.

Next, you’ll juice the lemons, strain the juice and measure it into a large microwave-safe bowl or jug. Add in the sugar and give it a stir. Microwave it at 100% power for 2-3 minutes, stirring after each minute, until the sugar has mostly dissolved.

Collage of four images showing the lemons being zested and juiced and the juice and sugar being mixed.

Then add in the butter and whisk until the butter melts.

Next, add in the beaten eggs a small amount at a time, whisking to combine the mixture well.

Cook the curd on 50% power for 2-3 minutes, again stirring after each minute, until it starts to thicken.

Then drop the power down to 30% and cook in 30-second bursts until the curd is as thick as you’d like it. The lemon curd should thickly coat the back of a spoon, and leave a line when you draw your finger through it (carefully, because it’s hot!)

Keep in mind that the curd will continue to thicken as it cools.

Collage of four images showing the butter, eggs and zest being added, and the cooked curd.

All that’s left to do is strain the lemon curd through a fine mesh sieve, to remove any stray pieces of cooked eggs, and stir in the remaining lemon zest. Tap the sieve against the bowl to get the curd to pass through – don’t push it through with a spoon, as you’ll end up with tiny pieces of mashed egg white going through too, and we don’t want that.

Collage of four images showing the curd being strained, and the little pieces of egg left in the sieve.

How to Make It on the Stove Top

If you prefer to make your lemon curd on the stovetop, you can. You’ll pretty much follow all the same steps outlined above in the microwave method, but using a medium-sized saucepan on the stove, Make sure you stir the curd constantly as you’re cooking it, to avoid it catching on the bottom of the pan.

You can also use a double boiler (a heatproof glass bowl set over a pan of simmering water), however, this will take a lot longer to cook.

The Best Way to Store Lemon Curd

If you’re using all of the lemon curd in another recipe, the easiest way to cool and store it is to leave it in the bowl or jug that you strained it into, and press a piece of plastic wrap directly onto the surface, to stop it from forming a skin as it cools. Once the jug isn’t super hot to the touch anymore, you can put the curd into the fridge to cool completely.

Lemon curd in a large jug, with a hand pressing plastic wrap onto the surface.

If you want to store the curd in a jar or container, pour it in, filling it up to the top, then put the lid on and pop it into the fridge once it’s cooled down a bit.

The microwave lemon curd will keep for 1-2 weeks in the refrigerator.

A spoonful of thick lemon curd resting on the top of a jar.

Ways to Use Lemon Curd

  • As a filling for a lemon meringue pie
  • In a cheesecake
  • On this no-bake gluten free lemon slice
  • Swirled through lightly whipped cream as a topping for desserts such as pavlova or meringues
  • Swirled through thick greek yoghurt or coconut yoghurt as a delicious snack or breakfast with berries and some muesli or granola
  • As a spread on toast, scones or waffles
  • As a topping for pancakes
  • As a cupcake filling
  • As a cake filling (make sure you pipe a dam/ring of a firm buttercream or ganache and then fill it with the curd to stop the curd spilling out)
  • As a filling for a Swiss roll cake or sponge cake
  • As a filling for macarons
  • As a topping for ice cream

Lemon curd also makes a great gift – pop it into some clean jars and decorate it with a nice ribbon or twine.

More lemon recipes…

Simple Lemon Cheesecakes
Gluten free Lemon Slice

Microwave lemon curd in a ribbed glass jar, with a silver spoon on a purple background.

Microwave Lemon Curd

Super easy microwave lemon curd recipe. Tart and thick, and perfect for all your baking and dessert needs.
5 from 1 vote
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Prep Time: 10 minutes
Cook Time: 5 minutes
Total Time: 15 minutes
Cuisine: American
Category: Sauces
Makes: 2 cups of curd (approx. 850g)

Ingredients

  • 150 g unsalted butter
  • 160 ml lemon juice (⅔ cup)
  • 300 g caster sugar (1 & ⅓ cups )
  • 4 large eggs lightly beaten
  • 4 teaspoons lemon zest finely grated

Instructions

  • Cut the butter into smallish pieces (1cm or so, but no need to get too fussy) and set aside.
  • Place the lemon juice and caster sugar into a large, microwave-safe jug. Microwave at 100% power for 2 to 3 minutes, stirring after each minute, until the sugar has dissolved.
  • Add the butter, and stir with a whisk until the butter is completely melted.
  • Whisk in the eggs and half (2 teaspoons) of the grated lemon zest.
  • Microwave for 2 to 3 minutes on 50% power, stirring after every minute, until the curd begins to thicken.
  • Then drop the power to 30% and cook in 30-second bursts until thick. If your microwave doesn’t go to 30% power, you can keep using 50% but make sure you stop and stir it often.
  • While the curd is cooking, place the other half of the grated lemon zest (2 teaspoons) into a large heatproof jug or bowl, and set a sieve on top of the bowl.
  • Once the curd is cooked, pour it immediately through the sieve. Give it a stir to incorporate the zest.
  • Cool for 20 minutes or so, stirring occasionally, then place some plastic wrap directly onto the surface of the curd, and place in the refrigerator to cool completely. Once cold, you can use your lemon curd in your chosen recipe, or transfer it to jars or containers.
  • Microwave lemon curd will keep for 1 – 2 weeks in the fridge.

Notes

Lemons – Depending on the kind of lemons you use, you may need to adjust the sugar and lemon juice amounts to get the amount of acidity that you like. Once the curd is cooked, give it a taste. If it’s too sweet you can whisk in a little more lemon juice, if it’s too tart, then whisk in a little icing sugar.
Lemon Zest – I don’t like to have toooo much lemon zest in my finished curd, so I add half of the lemon zest at the start of cooking to get the flavour, then strain the curd and add the rest of the zest. If you want to keep all of the zest in the curd, just add all of it right at the end.
Amount – To make more or less lemon curd, use the adjustable buttons above. Keep in mind if you’re making less curd, it will take less time to cook, and if you’re making more, it will take longer.
Cake filling – If you want to use this as a cake filling, you will need to pipe a dam of firm icing such as buttercream or ganache around the edge of the layers of cake before filling the middle with the curd.

Nutritional Disclaimer: Any nutritional information provided is a computer generated estimate and is intended as a guide only.

Keywords: dessert topping | desserts | filling | lemon curd | sauces | sweet sauces
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