You could make the pastry case and lemon filling in advance then whip up the meringue just before baking this classic dessert. Preheat the oven to 200C/400F/Gas 6. Grease a 20cm/8in fluted flan tin.

Add the zest and juice of the lemon and lime and place over a medium ... Meanwhile, make the meringue topping. Place the egg whites in a large bowl and whisk using an electric whisk until stiff.