NUT CRUMBLE SLICE

Preheat your oven to 160 deg C . Grease and line 20 x 30 cm ( 8 x 12 " slice pan . Mix together 1 and 1/2 cups of plain flour with 1 dsp of baking flour in a large bowl and add 1/2 cup of softened marg / butter ,3/4 cup of light brown sugar , 3 lightly beaten eggs ,1 tsp of vanilla extract and 1/4 cup of hazelnut spread . Using electric beaters , mix until smooth . Stir in 1/2 cup of granulated nuts . Spread the mixture into the prepared pan , smooth the surface with the back of a spoon . For the topping , mix together 1/2 cup of plain flour and 1/4 cup of the hazelnut spread to make a crumbly mix . now stir in 2 tbs of soft brown sugar and 1/3 cup of granulated nuts . Spread the topping over the cake mixture . Bake in your preheated oven for 45 minutes or until risen and firm . Let cool in the pan before slicing into bars .