Add the digestive biscuits to a ziplock bag, and use a rolling pin to crush them into fine crumbs - alternatively, add them to a food processor and blitz.
Mix the crushed biscuits with the melted butter.
Line a 12-hole muffin tin with paper or silicone cases, and divide the biscuit mixture evenly, pressing down firmly with a teaspoon for an even base.
Chill the tin in the fridge until ready to use again.
To make the filling, add the freeze dried strawberries to a blender or food processor, and blitz to a fine powder.
Pass the powder through a fine sieve to discard the seeds.
In a large mixing bowl, add the cream cheese, mascarpone and half the sugar, and use a hand mixer to beat them until smooth.
Add the strawberry powder, and mix again.
Spoon the mixture over the chill bases, and refrigerate again.
To make the topping, wash and quarter the strawberries, and add them to a pan together with the remaining sugar.
Cook them over a medium heat stirring occasionally until the fruit softens and turns into a soft jam; you can use a potato masher to get a finer texture.
Leave the reduction to cool down completely, then spoon it over the chilled cheesecakes.
Refrigerate again for at least 2 hours before serving.