1.
Preheat oven to 200 degrees C.
2.
Grease a 20cm soufflé dish (or cake tin - or 4 small individual ramekins) with melted margarine and dust with sugar.
3.
Put 1 tablespoon of milk and the chocolate in a heat-proof bowl and melt over hot boiling water, or in the microwave. Set aside.
4.
Melt butter in a saucepan over gentle heat, then add the flour all at once; mix well and remove from the heat.
5.
Add milk into flour mixture a little at a time, stirring constantly until the mixture forms a creamy paste.
6.
Add melted chocolate, cinnamon and all five egg yolks. Mix well and set aside.
7.
Whisk five egg whites and add sugar, 1 tablespoon at a time. Keep whisking until egg whites look like foamy bubbles.
8.
Slowly add whisked egg whites into chocolate mixture. Pour into souffle dish and bake for 20 minutes.