01 -
Wash and dry the lemons thoroughly. Use a fine grater to zest each lemon, then slice and juice them, removing any seeds.
02 -
Place the lemon zest, juice, granulated sugar, and water into a heavy-bottomed saucepan. Stir the mixture gently until the sugar is completely dissolved.
03 -
Set the saucepan over medium heat and bring the mixture to a gentle boil. Lower the heat and simmer, stirring occasionally, for 30 to 40 minutes until the liquid has thickened visibly.
04 -
To test the setting point, drop a small spoonful of the jam onto a chilled plate. Wait a minute—if the surface wrinkles when pushed, it is ready. If not, continue simmering for a few more minutes and retest.
05 -
Remove from heat and allow to cool for 3 to 5 minutes. Carefully pour the hot jam into sterilized glass jars. Seal immediately with lids and let cool at room temperature.