Melt dark chocolate and milk together over a double boiler.
Add the egg to the melted chocolate and mix well.
Sift in flour and sugar, then mix together.
Melt the butter and add it to make the batter.
Coat a pan with butter and pour in the batter.
Cook slowly over medium-low heat.
When the surface is cooked, flip and cook once more.
Let cool on a rack, then drizzle with chocolate syrup.