For the semolina pancake, bring the milk to the boil with a little salt, stir in the semolina until thick.
Melt the butter in a pan. Spread semolina mixture in it and let it steam out covered on very low flame (about 40 minutes) until it forms light brown crusts.
Break it up often with a fork. Stir in sugar, vanilla sugar and raisins and roast the semolina pancake a little more.