Tuesday 1 September 2015

Itsy-Bitsy Choco-Flake Cotton Cake 巧克力片炼乳棉花蛋糕

This is a variation from the condensed milk cotton cake recipe. I added some unsweetened 100% cocoa flakes to the cake in order not to further sweeten the cake. The tiny bits of chocolate flakes scattered throughout the cake to give the cake a faint chocolate aroma intertwined with the butter aroma :)

Yield: one 6" or 15 cm cake
Mould size: 6" diameter, 3" height
Baking temperature & duration:
170 degree Celsius for 40 minutes with upper heating coil;
150 degree Celsius for 20 to 30 minutes with both heating coils.

All ingredients in room temperature 
Using nett 60g Omega 3+6 egg

3 egg yolks 蛋黄
30g beaten egg 蛋液

35g salted butter 有盐牛油
50g cake flour, sieved 低筋面粉,过筛
50g condensed milk 炼乳

3 egg whites 蛋白
40g fine sugar 细砂糖

10g unsweetened 100% cocoa 无糖纯可可

1. Line a 6" round cake mould with parchment paper at the base. 

 2. Shave 10g of cold chocolate bar with knife. Set aside in the fridge.

3. Mix egg yolks with beaten egg. Set aside.

4. Heat butter till small bubbles start to appear at the bottom of the melted butter.

5. Pour the flour into the hot melted butter. Fold to mix, using a spatula.

6. Add in the condensed milk to combine.

7. Add the (6) to (3). Cover and set aside.

8. Beat egg white till frothy, for about 30 seconds. Add in the sugar, in 3 batches.

9. Beat at medium high speed at the start and reduce to low speed towards the end of the process. Beat the meringue till almost reaching the stiff peak stage. The standing meringue has a slight dip at the tip.

10. Scoop about 1/3 of the meringue into the yolk batter in (7). Fold to mix.

11. Pour the yolk batter back to the remaining meringue and fold to mix into a smooth batter.

12. Slowly fold in the chocolate flakes from (2), into a smooth batter.

13. Pour the batter into the 6" round cake mould. Lightly bang the cake mould a few times to remove any trapped air bubbles in the batter.

14. Place the cake pan in a tray of 1cm-deep hot water. 
Steam-bake the batter in a preheated oven set at 170 degree Celsius with only the upper heating coil for 40 minutes at lower rack of the oven. 

After 40 minutes, reduce the oven temperature to 150 degree Celsius with both upper and lower heating, for another 20 to 30 minutes. The original recipe which uses eggs of 50 to 55g in weight, suggested 20 minutes. However, the eggs I used have a weight of about 60g, so I extended the baking time to 30 minutes.

End of baking.

Oven temperature and baking duration may differ based on individual oven. 

15. Remove the cake with pan from the oven and drop the pan with the cake from a height of about 5 cm for about three times. This is to prevent the cake from over shrinking during the cooling period.

Then let them cool down on a cooling rack for about 15 ~20 minutes, or till the cake slightly shrink away from the wall of
the cake mould.
While the cake is still warm, runs a silicon spatula along the edge of the cake. Remove the cake from the cake pan and cool down on a wire rack. This is to prevent accumulation of moisture at the base of the cake.

You may want to dry up the sides of the cake by keeping it in the warm oven for about 20 minutes. Turn on the oven to 90 degree Celsius for 2 minutes.

16. Slice the cake and enjoy :)

The cake tastes nicer after keeping in the fridge for about 2 hours :P


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