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I stopped buying citrus curd – this homemade version is smoother, brighter, and takes just minutes to make. It’s rich, tangy, and perfectly balanced, with a silky texture that works for everything from macarons to toast.
Why This Recipe Works
- Easy to customize with key limes or regular limes
- Smooth, glossy texture with no lumps
- Balanced flavor – tangy, sweet, and rich
- Made with simple ingredients in under 15 minutes
- Versatile – works for desserts, breakfast, or fillings
What Is Key Lime Curd?
Key lime curd is a smooth citrus spread made by gently cooking eggs, sugar, and lime juice until thick and creamy.
It has a rich, custard-like texture and a bright, tangy flavor.
I used lime curd for these Meringue Nests With Lime Curd And Cherries.
ngredient Notes
- This recipe uses egg yolks for a richer texture and deeper flavor.
- Fresh lime juice and zest are key – they give the curd its signature brightness.
- Butter is added at the end for a smooth, glossy finish.
- You can use whole eggs if needed, but yolks create a more luxurious result.
Key Limes vs Regular Limes
You can use either.
- Key limes – slightly more aromatic and tart
- Regular limes – easier to find, very similar result
In most cases, the difference is subtle once cooked.
How to Make Key Lime Curd
- Whisk everything together in a heatproof bowl
- Cook gently over a double boiler
- Stir constantly until thickened
- Finish with butter for a smooth texture
- Chill until set
The curd thickens as it cools.
How to Tell When It’s Ready
The curd is done when it:
- Coats the back of a spoon
- Leaves a clean line when you run your finger through it
- Looks glossy and slightly thickened
Do not overcook – it will continue to set as it cools.
Why Make It at Home?
- Takes about 15 minutes total
- More affordable than store-bought
- Fresher, brighter flavor
- No additives or preservatives
How to Use Key Lime Curd
- Spoon straight from the jar
- Macaron filling
- Cake or tart filling
- Pancakes, waffles, or crepes
- Toast or scones
You can also check out this Key Lime Pie – Lightened Up, it is the best key lime pie I’ve ever had.
A while back, I made this tangerine curd and used it in this Tangerine Layer Cake.
Storage
- Refrigerate up to 1 week
- Store in a sealed jar
- Texture thickens as it chills
Key Lime Curd
Ingredients
- 5 egg yolks
- 3/4 cup sugar
- 2 tsp key lime zest
- 1/2 cup key lime juice
- 1/8 tsp salt
- 4 tbsp butter
Instructions
- In a heatproof bowl, whisk together egg yolks, sugar, lime zest, lime juice, and salt.
- Place over a double boiler and cook over medium-low heat, whisking constantly, until thickened (about 5–7 minutes).
- Remove from heat and stir in butter until smooth.
- Transfer to a jar, cool to room temperature, then refrigerate until set.
Notes
- Stir constantly to prevent curdling
- Do not overheat – use gentle heat
- Strain for extra smooth texture if needed
- Thickens further as it cools
Nutrition
Nutrition information is automatically calculated, so should only be used as an approximation.
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Key Lime Pie Recipe {Lightened Up}
Just made this! Easy and very tasty. I’m making a key lime pie ice cream, so this lime curd will be added to that along with meringue and graham cracker crust. I’ll let you know how it went once it’s done churning. Thank you for a recipe that conveniently uses the exact number of leftover yolks I had!
Sounds amazing!
Can I leave out the butter?
I have not tried it without the butter…
This recipe says it makes 6 servings, but how big is one serving? I’m looking forward to making my own curds for thumbprint cookies and am trying to figure out how many recipes will equal 10 oz. TIA