12 cups fresh strawberries, hulled and sliced in half (about 4lbs)
5 tart apples (I used Granny Smith), cored, peeled and chopped
2 – 12 oz frozen grape juice concentrate, thawed
Place fruit and juice in heavy deep stainless steel pot. Bring mixture to a boil over medium heat, stirring constantly. Reduce heat and boil for about 25 minutes, stirring constantly and mashing fruit. I used a potato masher. Cook until gel stage has been reached. The gelling point is 220°F (104°C), or 8°F (4°C) above the boiling point of water.