Ingredients
6 egg whites
60g caster sugar
1 tsp cream of tartar
80g cake flour
1 tsp baking powder
14 pcs oreo biscuits (removed cream, lightly crushed into small pieces)
6 egg yolks
30g caster sugar
50g extra light olive oil/canola oil
80ml milk
Method
1. Preheat oven to 160C.
2. Use a
large clean mixing bowl, without any trace of oil or water, beat the
egg whites with an electric mixer until bubbles form. Add the cream of
tartar. After mixing well, add the 60 grams of sugar in three batches,
about one-third at a time, and beat well between additions. Continue to
beat until stiff peaks form. (I just poured in the sugar and cream of tartar together)
3. Sift the cake flour and baking powder, mix well.
4.
Whisk the egg yolks with the 30 grams of caster sugar, until the sugar
completely dissolves. Stir in the oil, bit by bit, until completely
combined. Add the milk and stir well.
5. Sift the flour mixture into the egg yolk mixture, in three batches. Combine well.
6. Fold-in the beaten egg whites with a spatula and gently combined well. Add in oreo biscuits crumbs.
7. Pour
the batter into the cake pan and bake in the preheated oven for about
35 to 40 minutes. After baking the first 15 minutes, if you find the
cake surface gets browning, reduce heat to 150C. Continue to bake
until cooked through. A needle comes out clean when inserted in the
middle.
8. Remove the cake from the oven. Invert the pan immediately on a wire rack. Let it cool completely.