Blackberry Jam

  Do you know what today is? Yep. Flashback Friday to be exact!  This post is from about a year ago and wanted to repost. The blackberries in this recipe can be substituted with any fruit or vegetable. All you need are (2 cups) blackberries, (1 cup) white sugar, (2 teaspoons) cornstarch, and (1-2 tablespoon) ground…