TOP TIPS

You can finely chop the pistachios in a food processor, if you like; use the pulse button, in short bursts, for an even texture.

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It’s best to use freshly squeezed lemon juice in the lemon curd.

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Cake flour is lower in protein than plain flour so it produces a finer, more tender crumb in cake baking.

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The curd can be made up to 1 week ahead; store in an airtight container in the fridge.

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The cake is best made on the day of serving.