Once you understand the technique of making a soufflé you will have the confidence to try many different flavours. The key is consistency, making sure you have the ingredients weighed out correctly and ensuring your whites are perfectly whipped. This is why I always use my trusty Kenwood machine with its specially designed whisk that is made up of 12 little whisks.
Pre-heat the oven to 180°C.
Using a pastry brush, evenly butter the insides of each soufflé dish. Pour the caster sugar inside the first dish and rotate it until completely coated. Tip the excess sugar into the next dish and repeat
Ensure your pastry cream and reduced raspberry puree are well mixed and kept warm, up to a maximum temp of 60C. This is essential to maintain the heat when making a soufflé otherwise the pastry cream will clump if it gets too cold.
Whisk the egg whites in the Kenwood machine with the lemon juice using the whisk attachment until they start to thicken and begin to mousse, then slowly add the sugar and whisk until medium soft peak stage.
Remove the bowl and whisk from the machine and attach the folding tool. Place the bowl with the warmed raspberry pastry cream onto the Kenwood machine base, add one third of the whipped egg whites and on speed two mix the egg whites into the pastry cream to loosen the mixture.
Add the other two thirds of the whipped whites and fold in on speed one to retain as much of the air and lightness as possible.
Fill the soufflé moulds with the mixture, level with a palette knife and dust with icing sugar. Allow this to dissolve and repeat again with another layer of icing sugar. Clean up the edge of the soufflé moulds by holding the rim of the dish with your thumb and index finger encircling the dish to remove about 2mm of mix away from the edge of the bowl. Clean the outside of the moulds with a damp cloth.
At this stage you could reserve in the freezer for a maximum of 2 hours before you cook them (You will need to microwave each soufflé on high for 10 seconds before you cook them in the oven as per recipe), otherwise cook the soufflés in the preheated oven for 8- 10 minutes, and serve immediately.
In a large heavy bottomed saucepan, bring the milk to a simmer with a little of the sugar, to prevent the milk from sticking to the base of the pan. Add the vanilla syrup. Draw off the heat and cool for 30 seconds.
Meanwhile cream together the egg yolks and sugar and then whisk in the flour and corn flour. Pour approximately ⅓ of the hot milk onto the egg mixture, and whisk until well blended. Pour back into the remaining milk, return to the heat and bring up to the boil, (small bubbles will begin to come through) whisk continuously.
Cool down on ice as soon as possible (this will prevent the growth of harmful bacteria). To store, transfer to a bowl or container, cover with cling film directly touching the surface (to prevent a skin from forming) and refrigerate.
Infuse this pastry cream with flavours other than vanilla, if you like. Citrus zest or a stick of cinnamon can be equally good
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