In a saucepan combine the water and 60 ml (1/4 cup) of beer. Add the cinnamon stick, cloves and honey and bring to a boil while stirring to dissolve the honey.
Lower the heat and let simmer to extract the flavour of the spices, about 5-7 minutes. Keep an eye on it as the beer may froth as it boils.
When about half of the mixture has reduced, lower the heat and pour the rest of the beer into the saucepan. Add the lemon slices. Keep on low heat until it has warmed and remove from the heat before it boils.
Strain the spices and serve immediately. You can press the cloves into the lemon slice and put it back to float in the drink.