Citrus Curd (with any citrus)

If you can zest it and juice it, you can use it in this citrus curd recipe. Key limes, cara cara oranges, ruby red grapefruits (you name it!). My personal favorite is Meyer lemon. And don’t stop at individual fruits—you can even go ahead and mix-and-match.

But the thing that makes this recipe really special is how easy it is to make. No double-boiler and no egg separating required. You can red more about how that works in my lemon curd post. If you’re ready to get zesting, jump to the recipe. Or read on for some tips for getting the most out of specific citrus fruits.

Adding red coloring (for grapefruits and oranges)

Color is something to consider for fruits like grapefruit and oranges. Citrus curd is naturally yellow, so if you want to get an orange/coral finished product, you’ll need to do a little something extra. Your options: color it naturally (I’ll explain in a second), use a drop or two of the synthetic stuff (easy!), or skip the coloring altogether if you don’t mind a paler citrus curd.

My favorite natural coloring for this is just the water left over after boiling beets. Simply boil some red beets for a salad, and then save the liquid. You’ll need about 1 tsp for grapefruit curd or 1/2 tsp for orange curd (I used 1 tsp to color the grapefruit curd in the fruit tart images below). Don’t add more than 1 tsp or you will affect the texture of the finished product. A little goes a long way!

Substituting some lemon juice (for sweet citrus)

If your citrus is on the sweet side (like oranges or tangerines), you may want to replace some of its liquid with lemon juice. Whether to add lemon juice is all about how tangy you want the final product to be, not how much lemon flavor you want it to have. So if you want a citrus curd with a sweet and sour bite, be sure to add a bit of lemon juice to the mix.

Don’t worry about missing out on orange flavor by leaving some juice out. The fact is, you get most of the citrus flavor from the zest, so substituting lemon juice won’t make much of a difference. An orange curd made with orange zest will still taste very orangey even if you use lemon juice in place of some of the orange juice.

Adding green coloring (for limes and other green citrus)

I’ve never found a natural green food coloring that works for lime curd, so I recommend going with a synthetic one or just leaving it as-is. I mean, key lime pie has always been the color of sweetened condensed milk. It’s pretty conventional to just let it be the color it’s going to be.

A quick note on non-citrus curds:

Passion fruit, hibiscus, cranberry—the list goes on! Anything tangy (not just citrus) can be made into a fruit curd. But this recipe isn’t necessarily that adaptable. For something that doesn’t just consist of juice and zest, you’ll need a more particular recipe.

So don’t go trying to use this recipe to make a green apple cinnamon curd (although that does sound delicious, this is not the recipe for that). I’d rather be honest than leave you super disappointed with a broken, runny experimental curd.

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