For the recipe you will need:
zucchini – 1 pc.
lemon – 1 pc.
sugar – (for 1 kg of zucchini 1 kg of sugar).
To make Zucchini Jam:

Zucchini, peeled and seeds, cut into cubes (the ideal size is two by two). Next, cut the lemon, here it can be smaller, but not on a grater, fall asleep in a suitable dish (any, except aluminum), put sugar on top and heat over low heat until boiling. Boiled. Turn off and do not touch until cool.