Blackberry Jelly

     This summer my Grandparents blackberries did extremely well.  I went and picked twice, getting about 2 gallons each time.  That is my only regret...that I did not go and pick more!
   
     So, how do you use 4gal. of blackberries---Eat them fresh, make blackberry cobbler, or a smoothie???
My choice(and my Mom's) was to make jelly.  This looked like a blog post in the making, so of course pictures were taken throughout the entire process.