Strawberry Mascarpone Tart [#94]

As Nigel says, the easiest tart ever - although I think I may have chosen unwisely with the shortbread as the biscuit base, as it has set quite firm, instead of being short and crumbly, as Nigel envisaged. Tastes good though, and that's what matters! I can see this working with loads of fruit toppings. Don't overbeat the mascarpone and egg yolk, as it almost split.