01 -
Prepare 4 jam jars (10oz/300ml each) by pouring boiling water into them or boiling them in a large pot. Let them dry upside down on a clean kitchen towel.
02 -
Wash, peel, and quarter the pears. Remove the cores and seeds, then chop into chunky pieces - they'll break down during cooking.
03 -
Combine the pear chunks with the jam sugar and cinnamon in a large pot. Bring to a boil and let it bubble vigorously for 5 minutes, stirring occasionally to prevent sticking.
04 -
Remove from heat and stir in the eggnog liqueur. While still hot, carefully pour the jam into your prepared jars, seal immediately, and let set overnight before moving.