STEAMED CHOCOLATE CAKE

My aunty 's son,bought home from school a pieces of cake given by his class teacher  ,when my aunty taste the cake ,it was nice soft moist cake.she asked her son to get the recipes from the teacher.
his teacher gave him the recipes and she passed it to me.Is a steamed choclate cake,soft and moist.

STEAMED CHOCOLATE CAKE

Ingredients;
100g cocoa powder
360g butter
220g castor sugar
400g evaporated milk
4 big egg (grade A)
200g plain flour
1 tsp baking powder
3/4 tsp soda bicarbonate
1/2 tsp salt

Method;
1.bring sugar,evaporated milk,butter in a pot double boil till the sugar dissolved and leave it to cool.
2.lightly beat the egg,gradually add into the (milk,sugar,butter) batter.
3.sift the flour,cocoa powder,baking powder,salt,soda bicarbonate together.add into the cocoa batter,stir to mix well.
4.pour into 9' x 9; pan and steamed for 45 minutes.(line the cake pan with parchment paper) or till the skewer inserted comes out clean.