The name “Key Lime Pie’ has always made me think of Jamaica and the West Indies, of hot summer days and azure seas and the scent of lime blossom in the night air. As we’ve had rather a cold spring here, I thought I’d give it a try, and it’s deliciously refreshing and very easy to make.
This is a combination of a couple of recipes I found. You can use most types of sweet, crunchy biscuits for the base - I used Nutikrust caramel flavoured, but they are quite sweet so next time I’ll probably go back to good old digestives or ginger nuts. I also used the ‘less sugar’ variety of Nestle condensed milk which had the perfect amount of sweetness to counteract the lime juice.
Key Lime Pie
300g digestive biscuits/ginger nuts etc
1/4 cup ground almonds
100g butter melted
1 x 397g tin condensed milk
3 medium egg yolks
finely grated zest and juice of 4 limes
double cream, whipped
extra lime zest, to decorate
Heat the oven to 160C/fan 140C/gas 3. Whizz the biscuits to crumbs in a food processor (or use a pestle and mortar or put in a strong plastic bag and bash with a rolling pin). Mix in the almond meal and melted butter and press into the base and about 4 cm up the sides of a 22cm loose-based tart tin. Bake in the oven for 10 minutes. Remove and cool to room temperature.
Put the egg yolks in a large bowl and whisk for a minute with an electric beater. Add the condensed milk and whisk for another 3 minutes then add the lime zest and juice and whisk again for 3 minutes. Pour the filling into the cooled base then put the pie back in the oven for 15 minutes. Allow the pie to cool, then chill for at least 3 hours or overnight if you like.
When you are ready to serve, carefully remove the pie from the tin and put on a serving plate. To decorate, dollop the cream onto the top of the pie and sprinkle with the extra lime zest.