Wash the lemons and oranges, peel the ginger root and rinse. Prepare jars with lids for preservation. Rinse the mint sprig and separate it into leaves. Brew some tea.
Process fruit for jam. Cut the citrus fruits into slices and remove the seeds. Grind the slices into puree with a meat grinder or blender.
Boil the resulting mass. Transfer the puree into a saucepan, pour in water, add sugar, and put on fire. Stir until the sugar dissolves. Let the fruit boil. After this, cook the puree for 15 minutes. Turn off the heat.
Add ginger. Cut the ginger root into pieces and puree them in a blender. Add the ginger puree to the pan with the marmalade. Stir, cool. After this, distribute the treat into jars, close the lids and place in the refrigerator.
Serve lemon jam in a transparent rosette for tea, garnishing it with fresh mint leaves.