Miso caramel and chocolate tart

Method

• step 1

  Start with the tart case. Melt together the chocolate and butter in a heatproof bowl set over a pan of simmering water, making sure the bowl does not touch the water. Or, do this in short bursts in the microwave. Once melted, remove from the heat and leave to cool to room temperature.

• step 2

  In a large bowl, mix together the hazelnuts, bran flakes and salt. Pour in the melted chocolate mixture and stir well.

• step 3

  Press the mixture into the base and up the sides of a 20cm tart tin. It doesn’t matter if it doesn’t reach to the very top of the tin – you want just enough to give you a good edge roughly 2½cm deep. Put in the fridge to chill for up to 1 hour.

• step 4

  For the miso caramel, heat a pan over a medium heat, sprinkle in the sugar and melt to a dark caramel. Add the butter and whisk well, then pour in the cream and bubble for a minute.

• step 5

  Remove from the heat and whisk in the miso. Set aside for a few minutes to cool slightly, then pour into a heatproof dish and cool until it’s thickened to a pourable consistency (it shouldn’t be hot).

• step 6

  To make the ganache, tip the cream into a pan and heat over a low heat until steaming. Put both the chocolates into a large heatproof bowl and pour over the hot cream. Let it stand for a minute before whisking from the middle outwards until melted and smooth. Pour into the chilled tart shell and let it stand for 2 minutes.

• step 7

  Drizzle the miso caramel thickly all over the ganache. Use a cutlery knife to drag the caramel through the ganache to form swirls, then chill for 4 hours until set. It will keep in the fridge for three days but is best eaten as soon as the ganache has set.