Chocolate Oreo Hokkaido Chiffon Cupcakes

Hokkaido Chiffon Cupcakes
(recipe adapted & modify slightly from Nasi Lemak Lover) 

Ingredients:
3 egg yolks 
20g sugar 
35g corn oil 
60g chocolate milk 
60g Blue Jacket Plain Flour, sifted
10g cocoa powder, sifted

3 egg whites 
25g sugar

9 Oreo cookies crumbs

Method:
1. Hand whisk egg yolk & sugar till pale in colour. Add in corn oil & milk, mix well. 
2. Sift in flour & cooca powder, stir to combine.
3. Beat egg white until foamy, gradually add in sugar till soft peak form.
4. Take 1/3 of egg whites & mix into egg yolk batter.
5. Fold in the balance egg whites with a spatula till well combine. Add in oreo cookies crumbs & mixed till combined.
6. Scoop batter into paper liners.
7. Bake in a preheated oven @160 for 25mins.