Step 1

Line the base of an 18cm round loose bottomed tin with greaseproof paper or a reusable baking liner.

Step 2

Melt the butter (40g).Crush the digestive biscuits (100g). Mix together the crushed biscuits and melted butter. Put the biscuit mix into the prepared tin and use the back of a spoon to push it flat. Put the tin into the fridge to chill while you make the topping.

Step 3

Finely grate the zest of 2½ lemons. Squeeze out the juice until you have enough for 5 tsp and set aside.

Step 4

Whip the double cream (280ml/300g) until it forms a soft peak. Add the cream cheese (250g), caster sugar (100g), lemon zest and lemon juice.Whisk together until combined and thick.

Step 5

Remove the tin from the fridge and add the lemon mixture. Add a little at a time and push the mixture down with the back of a spoon, so there are no gaps. Once you've added all of your lemon mixture, smooth the top with a palette knife. Put your cheesecake into the fridge for at least 2 hours to set fully.

Step 6

When you're ready to serve, carefully remove the cheesecake from the tin. You may find the edges become a little smudged as you do this. If this happens, simply run a small palette knife around the edge of the cheesecake to smooth it out again.

Step 7

Whip the double cream (75ml/80g) until it forms stiff peaks. Put it into a piping bag fitted with a star nozzle (I use a JEM1B) and pipe 8 small swirls of cream around the edge of the cheesecake. Top each swirl with a half slice of lemon.

Step 8

Serve.