Steamed Butter Chocolate Cake by Yap Lai Fan

Ingredients: 
145g Butter 
130g Sugar (Original recipe calls for 150g) 
3 Eggs 
165g Self Raising Flour 
2tsp Double Action Baking Powder
112g Evaporated Milk 
1tsp Vanilla Essence 
2 tsp Cocoa Powder

Method:
1. Preheat steamer. Sift flour and double action baking powder. 
2. Cream butter and sugar till light and fluffy.
3. Beat in egg one at a time until all well combined.
4. Add in Vanilla Essence and mix well.
5. Fold in flour and milk alternately until well combine (should start and end with flour). Do not over mix. 
6. Scoop out 1/3 of the batter and add in 2 tsp cocoa powder and mix well. Pour the plain batter into the cups. Then pour in the chocolate batter continue. Use a sharp knife and swirl around the batter. (I just pour the chocolate batter into the cups instead of using a sharp knife).
7. Pour batter into cupcakes / muffins cups.
8. Steam over high heat for 20 - 25 mins or until skewer comes out clean.