Living in Ann Arbor, Michigan, has certain advantages. For example, we're rated as the "healthiest city" because of the health system and extensive parks. Among these benefits, I continuously hear about the Saturday Marketplace in Kerrytown (the historical district of Ann Arbor).
This is where farmers bring all their produce, eggs, and homemade goods to sell, and I have missed every last one of these for the past 5 years of living in Ann Arbor. So last Saturday, I was determined to make it just this once and dragged myself there early morning.
I ended up buying this bag of grapes, actually two bags, because the seller tricked me by saying: "for an extra dollar you can get another bag" and I was like "great, let's do another one then." Big mistake. The grapes were sour, seeded, and miserable. No one in their right mind would eat the damn things. I now realize concord grapes are a cross between sour blueberries and seeded grapes.
So then the grapes (now fully ripe) sat in my fridge, taking up room and using up energy.
I decided to make a project out of this, and googled "homemade grape jam" and found this great recipe on pickyourown.org. Here's my slightly altered version because I never follow cooking directions exactly.
Step 1: Mash grapes (use spoon or potato masher).
Step 2: Boil mashed grapes. Then reduce to simmer for 10 minutes.
Step 3: Pour grapes through strainer to get just the juice out.
Step 4: Boil grape juice and a package of Pectin mixed with 1/4 cup of sugar (found near canning jars in any grocery store).
Step 5: Add the same amount of sugar as there was grape juice (i.e. 2 cups sugar to 2 cups grape juice).
Step 6: Boil it for a few minutes. Then pour into sterilized canning jars. Twist tightly to seal.
Step 7: Boil entire jars of jam in a water canner for 5-10 minutes, then take it out to cool and you're done.
This whole thing cost me roughly $1.50 for a normal sized jar you can get at the grocery store. And it took me less than half hour to make 5 jars, so if you ever get screwed with buying too many grapes — make it into jam and save a little money