
In a cup or bowl combine ½ cup milk and 4 tablespoons maizena. Using a fork or a whisk, mix well until all the lumps have disappeared.
In a medium saucepan add the rest of the milk and the cinnamon sticks. Heat milk over medium heat.
Once the milk is warm, add the maizena mixture and mix everything together with a cooking spoon or a whisk. Add the sugar and vanilla and keep stirring to avoid the milk to sticking to the bottom of the pan.
Important! Stir often to avoid the milk to sticking to the bottom of the pan.
Increase heat to a simmer and cook until slightly thickened, about 5 minutes.
Serve while hot and sprinkle cinnamon or a dollop of whipped cream (optional).