Homemade Lemon Curd

The smell of lemon zest hitting a warm whisk is one of those small kitchen joys that stops me in my tracks every single time.

My friend Sarah once watched me make this on a rainy Saturday afternoon and declared it liquid sunshine in a bowl.

Ingredients

• 3 large lemons (zest and juice, about 120 ml): Room temperature lemons yield more juice so take them out of the fridge ahead of time.
• 115 g unsalted butter, cubed: Cold cubed butter melts gradually into the mixture which helps prevent scrambling.
• 3 large eggs plus 1 yolk: That extra yolk is the secret to the velvety texture that makes this curd unforgettable.
• 200 g granulated sugar: Granulated dissolves cleanly into the egg mixture without leaving any graininess behind.

Instructions

Whisk it all together:

In a medium heatproof bowl, whisk the eggs, yolk, sugar, zest, and juice until completely blended and slightly frothy.

Set up the double boiler:

Place the bowl over a saucepan of gently simmering water, making sure the bottom never touches the water beneath.

Add butter and stir with patience:

Drop in the cubed butter and whisk constantly for about 10 to 15 minutes until the mixture thickens enough to coat the back of a spoon.

Strain for silkiness:

Remove from heat and pour through a fine-mesh sieve into a clean bowl, pressing gently to push everything through.

Cool and chill:

Press plastic wrap directly onto the surface to prevent a skin, then refrigerate for at least two hours for the best texture.

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I once gifted a jar of this to my neighbor and she came back the next day asking if I could teach her to make it for her daughters birthday brunch.

How to Store It Properly

Keep your curd in a sealed jar or airtight container in the refrigerator and it will stay fresh for up to two weeks.

My Favorite Ways to Use It

Spoon it over warm scones, swirl it into yogurt, spread it on toast, or use it as a tart filling when you want to impress without much effort.

Little Things That Make a Big Difference

The details matter more than you think when you are working with so few ingredients.

• Use a microplane for the finest zest because large pieces make the curd taste bitter.
• Roll each lemon firmly on the counter before juicing to release the maximum amount of liquid.
• Taste your lemons first because an unusually tart batch may need a tiny extra pinch of sugar.

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Homemade lemon curd is proof that simple ingredients treated with care become something truly special. Share it generously and watch people light up.

Recipe FAQs

→ How do I know when it has thickened enough?

It’s ready when the mixture coats the back of a spoon and a line drawn with your finger holds briefly. Thickening typically takes 10–15 minutes over a gentle simmer.

→ Can I use only egg yolks for a richer texture?

Yes. Using extra yolks yields a richer, silkier curd, though the texture will be slightly denser than when whole eggs are used.

→ Is a double boiler necessary?

A double boiler (bain-marie) offers gentle, even heat to prevent curdling. If using direct heat, keep the pan very low and whisk constantly to avoid scrambling the eggs.

→ How should I store the curd and how long does it last?

Cool completely, then transfer to an airtight container and refrigerate. It keeps well for up to 2 weeks. Always check for off smells or mold before use.

→ Can I freeze lemon curd?

Yes — freeze in a freezer-safe container, leaving headspace for expansion. Thaw overnight in the fridge and whisk briefly to restore a smooth texture; separation can occur but is reversible.

→ How can I prevent a skin from forming as it cools?

Press a piece of plastic wrap directly onto the surface while it cools to stop air exposure and prevent a skin from forming.