Sweet Potato Butter

I had a few too many sweet potatoes from the farmer's market to eat before going bad, so I decided I'd try something new and make some sweet potato butter.  I've had it before and it's really yummy and similar to apple butter.  I figured it would be one less thing to buy later and could potentially make some nice inexpensive homemade Christmas gifts. 
I found my recipe at http://allrecipes.com/recipe/sweet-potato-butter/detail.aspx.  I ended up with over 8 cups of cubed sweet potato and apple with the 5 sweet potatoes and 3 apples I used.  I followed Jeannie's review and cooked it all in my slowcooker for 6 hrs.  It made the house smell wonderful!  Like fall!  This made six 8 oz. jelly jars of butter.  You can refridgerate or even freeze these, but I decided to can them since they were already hot from the sweet potato butter anyway.  I washed my jars and then placed them in some simmering water in a big pot on the stove while I blended up the cooked sweet potato mixture.  I removed the jars and filled them with 1/4 in. headspace.  To keep the jars from the bottom of the pot like a canning rack would, I used a metal steamer that sat on the bottom of the pot.  You couldn't keep the jars perfectly upright, but they mostly stayed that way.   I had just a little bit of water covering the jars, not the 1 in. that I read you should have.  I placed the lid on the pot and let them boil for a good 5 min.  I removed them from the pot carefully with salad tongs and all of them sealed!  It took a few min. but I heard them all pop.  It's best not to touch the lids too much until you are sure they have sealed. 

Can't wait to try it!