Rinse and dry the containers you'd like to put the jam in (enough for 5 cups.) I always use glass mason jars but plastic containers work great also.
In a food processor add strawberries and pulse just a few times, until strawberries are well diced, but not totally mashed. Measure exactly 2 cups of strawberries into a large bowl. (It's really important to measure the berries and sugar exactly, or the jam will not set properly.) Add the sugar and stir for several minutes until well blended. Let stand for 10 minutes, stirring occasionally.
Meanwhile, add water and pectin package to a small saucepan. Bring to a boil over high heat, stirring constantly. Once boiling, stir for 1 min. Remove from heat and add it to the strawberry mixture. Stir mixture for really well, for several minutes, until sugar is well dissolved.
Fill containers with jam and leave ½'' of head-space at the top. Cover with lids and allow to stand at room temperature for 24 hours.
After 24 hours you can store it in the refrigerator for up to 3 weeks or freeze it for up to 1 year!
Notes
Try the No Sugar Needed SURE-JELL fruit pectin if you'd like to make this strawberry jam recipe with less sugar!