Line a 20cm x 20cm square baking tin with baking paper.
Cut the Romany Creams into roughly 8 pieces and set aside.
Pre heat the oven to 180C.
Melt the butter and chocolate over a double boiler, stir until smooth and then set aside to cool.
Using an electric beater beat the sugar, eggs, salt and vanilla together until light and fluffy, about 3 minutes. Add the cooled chocolate and butter mix and beat until smooth. Sift the flour into the mix and stir to combine. Add the biscuits and fold through by hand.
To make the cheesecake, use an electric mixer to beat all the ingredients together until smooth.
Empty ¾ of the brownie / biscuit mix into the lined baking tin. Top with the cheesecake mix and then drop spoonful’s of the remaining brownie mix across the surface. Use a skewer to swirl the chocolate batter and cheesecake batter.
Bake for 40 minutes until firm to the touch (tip: loosely cover the tray with a piece of tin foil to prevent over browning)