225g chocolate biscuits
200g brown sugar
2 x 385g tins of condensed milk
160g dark bitter chocolate, chopped
For the base:
Preheat your oven to 160℃ and spray a 23cm loose base tart tin with cooking spray.
Add the biscuits to the bowl of a food processor and process to fine crumbs.
Add the melted butter and mix/blitz until the mixture looks like wet sand.
Spoon the crumb mixture into the tart tin and press it firmly into the base and sides of the tin.
Bake the tart base for 10 minutes.
Remove from the oven and allow to cool.
For the filling:
Add the butter to a saucepan and melt it over medium heat.
Add the sugar and whisk to combine.
Keep stirring the mixture with the whisk until the sugar has melted completely.
Add the condensed milk and keep whisking to incorporate.
Cook the caramel for about 5 minutes, taking that it doesn’t overheat and burn, and then add the salt.
Pour the mixture into the tart case and bake in the oven for 15 minutes.
Take the tart from the oven and set aside to cool slightly.
For the topping:
Add the cream and chocolate to a heatproof bowl set over simmering water.
Stir the mixture every now and then until smooth and completely melted.
Take the bowl from the heat and allow to stand for about 10 minutes. Give it a stir every now and then so that it cools down.
Spoon the chocolate onto the caramel layer and spread it evenly with a spatula.
Refrigerate the tart for 2 hours to set.
Allow the tart to come to room temperature before serving.