Mix all the dry ingredients together except the cocoa, flour,baking and salt

In a mixing bowl cream the prestige,sugar and eggs and essence until fluffy

Add in the dry ingredients half and incorporate as you add milk mix well and add the rest of the flour and mix

Separate a little batter and mix in the cocoa in it.

Grease the pan and dust it then pour the batter alternatively and bake in the oven at 160 degrees for 35 min or in till a toothpick inserted comes out clean.