Boil 150 ml water and 50 g sugar. Stir starch into 2 tablespoons of water until smooth and thicken syrup with it. Halve the passion fruit, scrape out the pulp, add to the syrup and chill. Separate the eggs.
Heat milk, 60 g sugar and vanillin sugar. Melt butter and stir in flour. Gradually add milk and stir. Bring to the boil while stirring constantly. Immediately stir in 2 egg whites and grated coconut.
Stir in the egg yolks one after the other. Beat 4 egg whites with the whisks of the hand mixer until stiff and fold into the soufflé mixture. Pour into greased moulds sprinkled with sugar (each containing approx. 250 ml).
Place the moulds in a flat ovenproof dish. Fill up to halfway with boiling water. Cook in the preheated oven (electric cooker: 200 °C/ convection oven: 175 °C/ gas: level 3) for about 20 minutes. Chop the coconut chips coarsely and roast in a pan without fat for approx. 3 minutes.
Spread the coconut chips over the finished soufflés. Serve immediately with sauce.