Pre-heat your oven to 350.
Now please follow the next steps in the order given. The reason is it turns out creamier. Otherwise you will have more holes in your flan.
In your mixer or blender, add the eggs. Mix until they are yellowish and you can't see any stringgy matter. Now you can add your evaporated milk. Mix togehter. Add your condensed milk, vanilla and cinamon, mix well. Now add your pumkin and mix.
Add flan mixture to your mold.
You will bake it in a water bath. This means you will need a bigger mold then the one you are using, and will add water to this. Enough water to cover your flan mold half ways. I usually place the big mold in oven, place my flan mold, and then add water.
Bake for 1 hour. Let cool and refrigerate. Yummmmm