I start by crushing the digestive biscuits into fine crumbs using a food processor. Then I mix them with melted butter until they resemble damp sand. The mixture is pressed firmly into the base of the heart-shaped tin and chilled so it sets properly.
I beat the cream cheese, mascarpone, icing sugar, and vanilla until smooth and lump-free. In a separate bowl, I whip the double cream until soft peaks form. Gently folding the cream into the cheese mixture keeps the filling light and fluffy.
I blend most of the fresh strawberries into a smooth puree and stir it into the filling. This gives the cheesecake a natural pink color and fresh fruit flavor without being overpowering.
I spoon the filling over the chilled biscuit base and smooth the top with a spatula. The tin goes back into the fridge for at least four hours so the cheesecake can firm up properly.
Before serving, I warm the strawberry jam slightly and spread it over the top. I slice the remaining strawberries and arrange them neatly for a beautiful finish.