For the apricot-mango jam, pit apricots, weigh and cut into small pieces. Peel mangoes, cut flesh from pit, weigh and cut into small pieces.
Mix in a large saucepan with jelling sugar and let marinate for at least 6 hours. Puree briefly with a hand blender (do not puree all fruit into mush).
Bring to a boil and simmer for 5 minutes until bubbly. Add lemon juice and apricot brandy. Pour the apricot-mango jam into sterile screw-top jars and seal immediately.