1. preheat oven to 190
2. grease 4 x 250m rammekins and dust the insides with extra caster sugar.
3. place cocoa, coffee and 1/3 C water in a saucepan and stir over a low heat till dissolved. Increase heat to medium high and simmer 2 minutes set aside and cool 5 mins.
4. whisk the egg whites until soft peaks. add the sugar and cream of tarter and beat till stiff peaks.
5. gently fold a little of the egg whites into the mocha mixture, then add all of the mocha mix into the egg whites and mix til just combined.
6. spoon the mixture into the prepared rammekins, filling to the top. transfer to a baking tray and bake 10 - 12 mins or until risen.
7. serve immediately.