To make the base use a food processor to whizz up the biscuits into crumbs, if you don't have a food processor, bash the biscuits gently with a rolling pin in a bowl or freezer bag.

Add the pistachios to the food processor and pulse them briefly, so they're still a bit chunky. Or you can chop them with a knife and mix them into the biscuit crumbs.

Mix the melted butter into the biscuit and pistachio mixture, and press the mixture into the bottom of a 23cm springform tin. Put it in the fridge for 30 minutes to set.

For the cheesecake filling use a food mixer with a whisk attachment or an electric hand whisk to mix together the cream cheese, pistachio spread and icing sugar until smooth with no lumps.

Add the double cream and whisk until it is very thick and holds its shape. You want it to get to a stage where you can scoop some up with your spatula or spoon and you have to give it a tap on the side of the bowl or slight flick of the wrist to get the mixture off the spoon. If it’s sloppy and slides right off the spoon without any encouragement needed, then you need to mix it more.

Smooth the filling into the tin on top of the biscuit base, then put it in the fridge overnight, or for at least 4 hours, to set.

Remove the cheesecake from the tin and put on your serving plate. Smooth the sides with a butter knife to create a neater finish if needed.

Warm the pistachio spread in the microwave for 20 seconds, then pour it over the cheesecake. Use a palette knife, or the back of a spoon to smooth it out in an even layer over the top of the cheesecake.

Whip up the double cream with the icing sugar and vanilla, ideally using an electric whisk, and pipe swirls all around the edge of the cheesecake. Decorate with the chopped pistachios.

Serve immediately, store any leftovers in the fridge and eat within 2-3 days.

I have made this cheesecake recipe and For the metrics of 8 servings on this app it actually appears to serve 10 people and each serving if you use one 200g tub of the Eatalian pistachio spread brand , it should come to about 420 calories per serving.