Boil the milk with the cinnamon and the leave to cool.
Beat the eggs, Add the sugar and warm milk.
Cover the bottom of the mold with caramel liquid (in my case I have used baking of cake-shaped glass, but you can also use flaneras indivudual or silicone molds).
Pour the beaten of the eggs and the milk in the mould.
We maintain mixture in oven to the water bath for an hour approximately (the cooking will be perfect when pricking with a needle the flan, This comes out clean). The oven temperature will be about 170 °.
Let cool and unmold and consume in cold.
Halfway, can add it to the mass fruit dry, raisins or pieces of fruit if we want to get a custard filling.
We can develop we same the caramel liquid, putting to heat the mold with a tablespoon of sugar and a little bit of water (covering entire bottom) and stir until acquiring the typical color toast.