Heat the cream either in the microwave (in 10 sec bursts - keep mixing) or over a pot of boiling water in a bowl – then add in the broken up pieces of white chocolate – to make a ganache.

To make the blackberry tart with white chocolate ganache, start with the shortcrust pastry: in a bowl, mix the butter, sugar (1), lemon zest (2), and salt (3), then work with your hands until the ...

Heat the cream for the ganache until shivering and then remove it from the heat. Stir in the white chocolate until it is melted and fully combined. Once this is at room temperature you can place ...