Chocolate Tim Tam Cake

Step 1: Preheat oven to 160C fan-forced.

Step 2: Spray a 2 x18cm springform cake tins with cooking spray and line the bases and sides with baking paper.

Step 3: Using a wooden spoon, combine margarine and sugar in a medium bowl and then add the puree, 1 egg yolk and vainilla and mix until smooth.

Step 4: Sift cocoa powder and flours over mixture, turning husks to bowl and then add milk and stir until combined.

Step 5: Using electric beaters, whisk the two egg white in a small clean, dry bowl until soft peaks for and then add to cocoa mixture and using a metal spoon, fold in until well combined.

Step 6: Divide mixture evenly between prepared tins and smooth the surfaces and bake for 15 to 20 minutes or until a skewer inserted into the centre of cakes comes out clean and then set aside for 10 minutes before turning out onto a wire rack to cool completely.

Step 7: Put one cake on a serving plate and spread half the mousse over the top of the cake and sprinkle over half the chopped Tim Tams.

Step 8: Top with the remaining cake and spread over remaining mousse and sprinkle over remaining Tim Tams and serve cake.