Kiwi Curd, or Any Curd for that Matter (Volume Measurements, not Weight)

Remember when for World Goth Day when I did the Madeira cake with eyes? In that recipe, I mentioned that my friend Aimée's original memory of eating that kind of cake as a kid was that it was kiwi flavoured filling, not strawberry. I also promised that I would update you with a kiwi filling recipe, and here it is!

Confession time: I hate kiwi fruits. They taste like under ripe strawberries, and when they're puréed they look like green frogspawn. They probably taste like frogspawn too, but I've never eaten frogspawn so I have no frame of reference.

But there are people in this world who like kiwi fruit and if you do you'll enjoy this recipe, which is very simple. Like most of my recipes, this is a simple ratio:

To make the curd base

2 parts fruit purée : 1 part sugar

In volume (fluid ounces, millilitres, etc.)

Once you make the base mixture, you'll need to thicken it with some cornflour.

To thicken with cornflour:

8 fluid ounces (225 millilitres) of base mixture : 1 to 1½ tablespoons (15 to 22 millilitres) cornflour

Now, I do understand the obvious issue here: how many kiwi fruits/strawberries/raspberries etc. are in 8 fluid ounces of purée? Well, that might be a question for Google, but what I do is I buy the fruit, purée it, and then work with what I have with respect to the ratio. That's the beauty of ratios, and why I love using them in the kitchen.

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DIFFICULTY
No baking required, but uses stove top cooking

TIME

About an hour

RECIPE RATING

Easy!

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INGREDIMENTS

8 fluid ounces (225 millilitres) kiwi fruit purée, smoothly blended, I think I used 6 peeled fruit to make this much purée

Zest and juice of 1 lime

4 fluid ounces (115 millilitres) caster sugar

1 to 2 tablespoons (15 to 30 millilitres) cornflour

Pinch of salt

Optional: 1 tablespoon (15 grammes) unsalted butter

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METHOD

• In a saucepan, heat together the fruit purée, lime juice and zest, and sugar over medium heat until the sugar dissolves and comes to a simmer.
• In a small cup, mix together the cornflour with a few tablespoons of water to make a slurry. When the purée is simmering, gradually add in the cornflour and mix until it comes to a thickness you like: you can add all the cornflour to make it more like a jelly when it sets, or add less to make it more like a loose jam.
• If you want a little extra richness, take off the heat and then mix in the butter until it has completely emulsified into the curd.
• Pour into a wide shallow bowl, allow to cool slightly before covering with cling film - making sure that the cling film touches the surface of the curd - and allowing to cool completely before chilling until set, which will take about 4 hours.

STORAGE

Keep in the fridge in an airtight container and use within a week.