Whisk eggs and sugar in a large microwave safe bowl.

Add juice, zest and cornflour and whisk until combined.

Drop squares of butter on top.

Select the Microwave setting on your Panasonic Combination Microwave and select 1000 W Power Level, confirm your selection.

Microwave in 1-2 minute bursts, whisking in between until the butter is melted and the mixture is hot.

Microwave in 30 second bursts until mixture is thickened.

Pour into a clean bowl while hot and cover top with cling wrap, directly on the surface.

Store in the fridge to cool and thicken before use.

Sift the flour into a bowl.

Add butter, flour and sugar to your food processor and blitz until they form a crumb.

Add egg yolks and lemon juice and mix until a dough forms.

Tip onto a floured bench and knead until a smooth dough is formed.

Roll pastry between two sheets of baking paper until it is about 5mm thick and then cut out a circle large enough to cover your pie dish or tart pan, with an overhang on the edges.

Wrap in cling wrap and rest in the fridge for 30 min.

Select the Oven setting on your Panasonic Combination Microwave and set the temperature to 190°, confirm your selection and begin to preheat.

Remove the dough from the fridge and let it come to room temperature for 10 min.

Grease your pie dish or tart pan and roll the pastry circle into it.

Line with a sheet of baking paper and add baking weights or rice.

Bake for 15-20 min and then very carefully remove the weights and the baking paper.

Continue baking for a further 10-15 min until the crust is baked and lightly golden.

To make the meringue, place the water, cream of tartar and half the sugar in a small saucepan over high heat.

Cook, stirring constantly, until the sugar has dissolved.

Bring to the boil, reduce the heat to medium and cook for 4 minutes.

Place the egg whites in the bowl of your stand mixer and beat until stiff peaks form.

With the motor running, add the remaining sugar, one spoonful at a time, whisking for 30 seconds before adding more.

Very slowly add the hot sugar syrup in a steady stream and whisk for a further 4-5 min until the meringue is glossy and cool.

Spoon the thickened lemon curd into the cooled pie crust, smooth out surface and top with thick swirls of meringue.

Place the Grill Tray on the lower level and sit the finished pie on top.

Select the Grill setting on your Panasonic Combination Microwave and select Grill 1 for your Power Level and confirm your selection.

Set your cooking time at 10 min and press the Dial to start.

Check the progress of the meringue browning regularly and either remove or extend the cooking time as needed.

Let cool before serving.