This strawberry jam recipe takes very little time to make and you don't even need to add pectin. It can easily be canned or frozen and is so delicious!
At least 3 hours before you are ready to make your jam, combine the sugar and strawberries. Cover and set aside for 3 hours. This will allow the sugar to pull some of the juices out of the berries (if you are short on time, you can skip this step, but it really is the best way)
In a heavy pot, combine the strawberries, sugar and lemon juice
Cook over low heat, stirring often, until sugar dissolves and the mixture starts to boil
Continue cooking over low heat until for about 20 minutes until the mixture starts to thicken and measures 220F on a candy thermometer
Remove the pan from the heat and stir in the butter