Supposedly this is the recipe for Lauri Jo Bennett's blueberry pepper jelly that's sold nationwide. Other flavors may be made, such as strawberry, peach or blackberry. NOTES 9/25/14: I've made this a second time using apple cider vinegar, which I prefer over white vinegar. There's less of an acidic 'bite'. Also, I reduced the Certo to 2 (3 ounce) packets with great success. I found using 3 (3 ounce) packets was fine, but the end product was a very stiff jelly (still good, but not necessary). This will reduce cost, too. Just remember to boil for no less than the prescribed 1 full minute once the Certo has been added. Use your timer!