Lots of yummy jam with little effort!
I was always told you shouldn't double a jam recipe, which is what this recipe seemed to be. I was glad to learn that 12+ wonderful jars of jam can come from such little effort!
I used 6 pints of farm-fresh berries which I crushed, then added the diced rhubarb, lemon juice, and about 1/2 teaspoon of cinnamon. I used low-sugar pectin, and only used 8 cups of sugar because I like tartness, but even cutting the sugar left if very nicely sweet & tart.
I would have rated it five stars, but I tweaked the recipe, and am very happy with the results!