In a bowl take strawberry add sugar and lemon mix well.keep aside for 2 hour.
After that heat a pan and strawberry mixture, keep stirring occasionally.
Continue to boil for another 10 minutes or till strawberry turns soft then mash strawberry well and get smooth consistency.
Check the consistency, dip a cool spoon into the mixture and make sure the mixture doesn't drop off. else continue to cook further.
Transfer the jam into glass jar and cool completely. And preserve it for a week.