Easy Key Lime Curd Recipe

5 from 7 votes

Apr 05, 2026

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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.

Key Lime Curd buttery, tangy, rich, sweet curd in a white ceramic bows, with a ceramic spoon and key lime slices next to it. Great for filling lime macarons.

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

Key lime curd as a key lime macaron filling. Lime green macarons, filled with tangy lime curd.

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 for lime curd

Refrigerate up to 1 week
Store in a sealed jar
Texture thickens as it chills

5 from 7 votes

Key Lime Curd

Smooth, tangy, and rich key lime curd made in minutes with simple ingredients. Perfect for desserts, fillings, or spreading.

Prep: 5

Cook: 10

Total: 15

Servings:

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Ingredients

US Customary – Metric

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

Calories: 217kcal, Carbohydrates: 27g, Protein: 2g, Fat: 11g, Saturated Fat: 6g, Cholesterol: 183mg, Sodium: 123mg, Potassium: 39mg, Sugar: 25g, Vitamin A: 465IU, Vitamin C: 6mg, Calcium: 24mg, Iron: 0.4mg

Nutrition information is automatically calculated, so should only be used as an approximation.