Strain the ricotta overnight, in a sieve lined cheesecloth, over a large bowl.
Preheat your oven to 180°C and line the bottom of a 20cm springform cake tin with parchment paper.
Combine the digestive biscuits and sugar in a food processor, adding the melted butter until combined. Press into the bottom of the cake tin, and bake for 10-15 minutes.
Combine lemon juice and gelatine, and set to one side.
In a small saucepan bring your milk to scalding, as it begins to steam but before bubbles begin to form. Combine 1 tbsp caster sugar, and egg yolks and gradually pour in the scalded milk - stirring continuously until fully combined.
Rinse the saucepan and return the milk and egg mixture to the clean pan. Place over a low to medium heat, and stir until it thickens. You’ll know this is about to happen, when the mixture begins to steam, so watch it very carefully. When the mixture evenly coats the back of a wooden spoon, it is ready. Taste, and add more sugar if required.
Stir the softened gelatine into the custard, with a drop off vanilla extract, until completely dissolved.
In a separate bowl whip the double cream until medium peaks form.
Add the drained ricotta to a food processor, mixing until smooth, then add the cream cheese and mix again until smooth. Slowly pour in the warm custard to combine, then transfer to a bowl, and fold in the whipped cream.
Pour this mixture into the cake tin, and set aside in the fridge for 10 minutes.
To make the strawberry glaze combine 2 tbsp of strawberry juice with the gelatine and set to one side. In a separate small bowl combine 1 tbsp strawberry juice with the cornflour and set aside. In a saucepan combine the remaining juice, and the sugar over a medium heat until dissolved and just beginning to boil. Whisk the boiling mixture into the cornstarch mixture, and then stir in the softened gelatine mixture and stir until dissolved. Let cool, and then pour over the cheesecake, tipping the pan as you go to evenly cover the cake.
Chill in the fridge for 1 hour, carefully remove the cake tin, and top with quartered strawberries to serve.