Steamed Brownie Potato Cake

Ingredients
100 margarine
50g dark chocolate ~ melted
100g steamed potatoes ~ puree
7 egg yolks
4 egg whites
200g granulated sugar
1 tsp Emulsifier / SP Stabilizer or substitue 1 tbsp condense milk
75g cake flour
25g cocoa powder
1/2 tsp baking powder
1/2 tsp chocolate paste

Directions

1. Heat margarine & chocolate using double boiled.  Stir well then add potato puree & stir well & set aside.
2. In a large mixing bowl or stand electric mixer, beat together eggs, sugar & Emulsifier / SP stabilizer until light & fluffy (about 10 mins).  Then low the speed to add sifted dry flour.  Mix evenly.
3. Then add margarine chocolate potato puree mixture & stir gently.
4. Divide 2 even portion of batters, pour 1st batter into 24x10x7cm pan & steamed for 15 mins on medium heat.
5. Spread with chocolate paste & steam for another 5 mins.
6. Then pour the remaining batter, steamed another 20 mins until cooked.