This is a recipe I have coveted. I have asked twice for said recipe and both times she has said, "Oh it's so easy! The recipe's right there on the back of the Certo box." I have a hard time believing that the glorious substance I've slathered on countless dinner rolls could be found on the back of a box. And I must admit that I haven't tried it yet. But here is the link to the CERTO Strawberry Freezer Jam recipe in case she's telling the truth.
UPDATE (8/31/15): I made it. It tastes just like Grandma's. My life is now complete.