Steep the chamomile tea in the 2 cups of hot water for 5 minutes then add it to a medium-sized pot. Add the rest of the ingredients and bring it to the boil.
Peel the guavas and slice them in half. Rinse them to ensure any dirt has been removed. Add them to the pot and poach them over a gentle heat for about 10 minutes and until they are soft but are still holding their shape. Remove them with a slotted spoon and set aside.
Continue to lightly simmer the syrup for a further 8 – 10 minutes until it has thickened. Take it off the heat and allow to cool a little then add the guavas back in and then allow to cool completely. Decant into a storage container with the spice pods and cinnamon stick and refrigerate until serving.