Step 1
Preheat oven to 180C (350F). Grease a 20cm round cake tin and line with baking paper
Step 2
In a bowl, sift flour, salt, baking powder and cocoa together
Step 3
Add milk, butter, sugar and eggs and mix until pale and fluffy
Step 4
When the mixture is evenly combined, spread into the prepared cake tin, and bake for 45 minutes, or until a toothpick comes out clean when inserted into the cake.
Step 5
Allow cake to cool
Step 6
To make frosting, beat the melted butter in a mixer for 30 seconds. Add milk and vanilla extract, then mix to combine.
Step 7
Add icing sugar and cocoa powder and stir until incorporated.
Step 8
Spread over the top of the cooled cake, and serve