Roughly cut the fresh ginger into 1 inch to half inch sized pieces.
In a large pot, bring water to a boil. Add the ginger pieces and cinnamon sticks and bring down the heat to a very low simmer. Steep ginger and cinnamon for 1 hour or until liquid has reduced by half. This could take more hours.
Take tea off the heat and let cool for 5 minutes. Add molasses and sugar and/or honey to taste and stir until fully dissolved.
Drink tea warm or chilled.