Ingredients (8" chiffon mould):
(A)
4 egg yolks
15g brown or castor sugar
(B)
1 pack instant coffee powder melt in hot water to make up 70ml coffee
1 tsp coffee essence or vanilla extract
60ml canola oil
(C)
85g cake flour
15g corn flour
A pinch of salt
(D)
4 egg whites
75g brown or castor sugar
Method:
Whisk (A) until well combined, add in (B), mix well. Sift C together and mix into (A) and (B). Mix until no lumps are seen. Set aside.
Whisk egg whites in (D) with electric mixer until foamy, add in sugar and whisk till stiff peaks form. Fold D into main batter in 2 or 3 steps. Fold with whisk and/or rubber/silicon spatula until well combined. Do not deflate the mixture! It depends on the beaten whites to rise. Pour batter into ungreased chiffon tin from a height slowly so that large air bubbles can pop off. Tap on countertop a few times before baking in a 170 degree celsius preheated oven for about 30 minutes, top is browned and cake springs back to touch. Immediately overturn onto cooling rack or bottle top and let it cool for about an hour before unmoulding.
Original recipe is from here: http://closeto-u.blogspot.sg/2011/10/do-re-me.html I modified into coffee chiffon.