Lemon Curd Perfection: 5 Mistakes To Steer Clear Of While Making Lemon Curd (2024)

FAQs

What happens if you overcook lemon curd? ›

What happens if I over-cook lemon curd? Overcooking will cause proteins to bond too tightly, squeezing water out from between them and giving them a rubbery, lumpy texture. If you over-heat the lemon curd, the egg proteins can coagulate and you will see little bits of cooked egg.

Although lemon curd uses egg yolks and/or egg whites, the final product shouldn't taste eggy. If it does, it may mean that you've overcooked your eggs. In saying that, traditional lemon curd does have a distinct after taste which doesn't sit well with some.

Use Sufficient Egg Yolks

Lemon curd has traces of yellow in it naturally, but its striking golden colour comes from the yolks. Also, incorporating whole eggs is not preferred since the egg whites cause the lemon curd to become lighter.

Trouble shooting: Most Lemon Curds are runny because they don't get cooked long enough, to 170 degrees F, to thicken the egg yolks – so cook on! If your curd isn't thickened after 10 minutes, or up to 15 if using a double boiler, then increase the temperature of the stove slightly – and don't stop whisking!

EDIT: I managed to fix it by reheating it, letting it get somewhat smooth, straining it, adding lemon juice, and then stirring more. I did it with one orange so I couldn't just start over again. I'm thankful for the advice though! The curd is now a beautiful orange, a bit thick and sweet, but really good!!

A metallic aftertaste is usually the consequence of the lemon curd coming into contact with a metal (especially while it's hot). This could be a metal whisk, a metal bowl, a metal (or metal-coated) saucepan, or a metal sieve.

Dip a spoon into the curd then run your finger over the back of it. If it leaves a clean line in the curd, it's cooked enough and ready to cool. Curd will thicken up more once cooled completely. Spoon into a container, cover and refrigerate.

Problem: My Lemon Curd is Too Runny

The curd wasn't cooked long enough to allow the egg to thicken, or not enough butter was added.

The solution has to do with when the butter is added to the recipe. After much research and testing, I discovered it should be added at the end of the recipe, not during cooking. It's because butter is an emulsion, when boiled, it separates into fat and water, causing the curd to do the same.

If your lemon curd turned green, it likely had a reaction to something metal. Avoid using a copper or aluminum pan as those will react with the lemon juice and cause the discoloration in the lemon curd, and could even cause a slightly metallic aftertaste.

Does homemade lemon curd need to be refrigerated? ›

In a covered, airtight container for up to one week. It doesn't really freeze well. Lemon curd does contain eggs and dairy (butter), so I'd be ok leaving it out for the day if I plan on serving it, but anything overnight definitely would need to be refrigerated.

Between the heat and whisking, lemon curd gets foamy while it's cooking. As the curd begins to thicken, the foam will start to settle down, and then the addition of the butter at the end of cooking eliminates the foam. So don't panic when you see foam, just keep whisking and cooking.

I don't recommend reheating it but you can let it thaw in your fridge overnight if frozen and then it will be the right consistency for use. If you'd like it less chilled, you can let it sit out at room temperature for 15 minutes before spreading it on toast or whatever you like.

Shelf life

For best quality, store in a cool, dark place (away from light). Plan to use canned lemon curd within 3–4 months. Browning and/or separation may occur with longer storage; discard any time these changes are observed.

When it changes colour and darkens it doesn't taste as good.

Dip a spoon into the curd then run your finger over the back of it. If it leaves a clean line in the curd, it's cooked enough and ready to cool. Curd will thicken up more once cooled completely. Spoon into a container, cover and refrigerate.

It keeps the protein strands far enough apart from one another to increase the denaturation temperature window. In other words, it makes it much easier to get the right texture. After gently cooking the curd, it will begin to coat the back of a spoon more thickly than prior to heating.

Curdling in lemon curd can occur if the mixture is heated too quickly or if the eggs are cooked at a very high temperature.