People in the Pacific Northwest take wild blackberries for granted. In fact, they’re something of a nuisance, lining highways and filling empty lots (my dad once had to rent a backhoe in order to clear the brambles from the lower half of our yard). In August, it’s easy to freely pick gallons of blackberries (you may sacrifice a bit of skin in the process – wild blackberries have very sharp thorns) at local parks, nature reserves and backyards. Just make sure to watch where you’re picking, last summer my parents got scolded after accidentally wandering onto someone’s property while picking berries at the very furthest most point of a dead end road.
Out here in the Mid-Atlantic area of the country, blackberries are a little harder to come by. In fact, I’ve yet to find any wild fruit growing here in Philadelphia. However, I’m lucky to have a few good u-pick farms in the area. They’re not free, but they’re pretty cheap (two weekends ago, I paid $1.10 a pound) and when it comes to blackberries, the cultivated patches come with far fewer thorns than the wild ones.
Blackberry jam is one of my mom’s specialties, so this recipe is more hers than mine. She’s the one who taught me to mash the berries through a strainer to remove the seeds before turning them into jam (it’s a necessity with wild berries, as they tend to be seedier than cultivated berries. If you have more civilized berries, the deseeding process is optional). She’s also the one who showed me how wonderful a smear of blackberry jam can be on a slice of peanut butter toast mid-February.
And, because I like to share my bounty, I do have a half pint of this luscious jam to give away. It’s a deep, deep purple color, is almost entirely seedless and is particularly amazing on pancakes (I had friends over for brunch the day after I made the batch and we couldn’t believe how perfect it was in place of maple syrup). Leave a comment by Monday, August 31st at 11:59 p.m. eastern time to enter.
So, on to the recipe we go.
Seedless Blackberry Jam
- 6 cups blackberry pulp, 8-9 cups of berries, mashed through a strainer with the back of a wooden spoon
- 4 cups sugar
- 2 teaspoons cinnamon
- 1 teaspoon freshly grated nutmeg
- 1 lemon, juiced and zested
- 1 packet liquid pectin, half the box
- Prepare a canning pot with six half pint jars. Wash lids and rings and set aside.
- In a large, non-reactive pot (stainless steel or enameled cast iron), combine the sugar and fruit pulp and bring to a simmer. Add cinnamon, nutmeg and lemon zest/juice and stir to combine.
- Let the mixture reach a boil, stirring frequently to prevent it from boiling over. When the mixture appears to be thickening a bit, add the pectin and bring it back to a roiling boil.
- Let it boil vigorously for at least five minutes to activate the pectin. Before removing from the heat, check the set using the plate or spoon test to ensure that the jam will firm up when cool.
- Wipe the rims, apply the lids and rings, and process in a boiling water bath canner for 10 minutes.
- When the time is up, remove the lid from the pot and turn off the heat. Let the jars rest in the cooling water for five minutes. When that time is up, remove jars and set them on a folded kitchen towel to cool.
- When the jars have cooled enough that you can comfortably handle them, check the seals. Sealed jars can be stored at room temperature for up to a year. Any unsealed jars should be refrigerated and used promptly.