Immediately pour the peeled and diced pears with lemon juice, Mix the lemon peel (otherwise it will turn brown). Add the preserving sugar, ginger and coriander and mix well. Overnight or 10-12 hours in a covered jar leave. Then bring the mass to a boil, stirring, and 4 minutes Let it boil bubbly. Then add the schnapps and the jam in hot Fill the jars and close them immediately.