Rinse the pears, remove the stem and core (if the pears are large) and cut the pears into small pieces
Mix pears, sugar, and lemon juice in a saucepan and place in the fridge overnight (or a minimum of 8 hours)
Put the cinnamon stick in the saucepan and cook the jam for about 40 minutes until it thickens
Remove the cinnamon stick from the jam
Blend the jam if it is still too lumpy
Rinse the jam jar with atamon and put the jam in the jar
Close the jar and let the jam cool before serving it