Ingredients
- 300g pack ginger nut biscuit
- 100g butter, melted
- 3 egg yolks
- 50g golden caster sugar
- zest and juice 4 lime, plus thin lime slices (optional) to serve
- zest juice 1 lemon
- 397g sweetened condensed milk
Method
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Heat oven to 180C/fan 160C/gas 4. Tip the biscuits into a food processor and blitz to crumbs. Add the butter and pulse to combine. Tip the mix into a fluted rectangular tart tin, about 10 x 34cm (or 20cm round tin) and press into the base and up the sides right to the edge. Bake for 15 mins until crisp.
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While the base is baking, tip the egg yolks, sugar, and lime and lemon zests into a bowl and beat with an electric whisk until doubled in volume. Pour in the condensed milk, beat until combined, then add the citrus juices.
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Pour the mix into the tart case and bake for 20 mins until just set with a slight wobble in the centre. Leave to set completely, then remove from the tin, cool and chill. Serve in slices topped with thin lime slices, if you like.