Sift together the flour, bicarb soda and salt. Set aside.
In a large bowl, beat 125g butter and 2 1/2 cups brown sugar until well mixed. Add eggs one at a time. Beat in the vanilla and melted chocolate. Stir in half the sour cream and then half the dry ingredients to the butter mixture until well blended.
Add the remaining sour cream and dry ingredients to the batter. Stir in boiling water.
Bake in a greased 23x40cm cake tin for 35 minutes. Let cool ten minutes before icing.
Melt 125g butter in a saucepan. Stir in 1 cup brown sugar and boil about 2 minutes. Stir in 1/4 cup (65ml) milk and bring to a boil. Place saucepan in cold water and stir in the icing sugar. Continue stirring until smooth. Spread over still warm cake.
This cake was so bad, we thre the four seperate ones we made for my daughters paw patrol birthday cake and bought a ready made one. As with the above review, it had to be baked for an hour and the taste was horrible, barely any chocolate at all. STAY AWAY from this recipe! - 30 Apr 2016
I made this cake and took it to work, everyone loved it. I made the cake exactly as the recipe except I had to cook it for about an hour and ten, at 35 minutes it was still runny. Maybe that temperature was for two tins not one. I also thought the caramel icing might be a bit much so I split the cake and did a fresh cream icing. - 02 Dec 2014