During strawberry season I find I don't have enough time to make canned strawberry jam, so I just freeze all my extra berries. This is how I make jam throughout the year.
Place in a large bowl:
1 cup dried pineapple chunks
4 cups frozen strawberries
Let stand on the counter overnight to thaw and for the berry juice to soak into the pineapple. In the morning, blend with a hand blender or food processor to the desired texture. There is no need to use a high speed blender or over process.
Tip: You may want to drain off a bit of the strawberry juice before blending to make a thicker jam. But save the juice to drink or put in a smoothie! It's wonderfully sweet after being with the pineapple.