Honey-Sweetened Blackberry Butter

My family’s humble, lakeside cabin in northern Wisconsin is way, way up there—at the tippy top of the state, in fact, just shy of the UP, halfway across.

Mercer, WI
Iron County, Wisconsin. My happy place for 30-some years.

As if a week in that fabulous place with my fabulous family weren’t enough reward, most years I also come home with a parting gift: anywhere from a pint to a couple quarts of wild raspberries, scored from the winding gravel drive between the house and County FF.

Not this year, though.

Sister-in-Law Joan and I scrounged just a couple berries apiece on one of our morning walks. Whether it was last winter’s record snowpack, its record-cold temps, or the resurgence of the ferns after my folks allowed some logger neighbors to thin the woods a few years ago, the wild-razz crop this summer was practically nil.

Back here at home, however, the berry tap is flowing freely. In just a week since the first blackberry plumped up and purpled from its tight red fist, we’ve pulled about five quarts out of the thicket, with many, many more waiting to ripen.

Turn, turn, turn.
Though they’re about a week behind last year’s pace, my blackberry canes are yielding about a quart a day.

So yesterday, my first day back from vacation, was a day spent at the stove, kickstarting a triple batch of the Blackberry-Bourbon Jam I improvised last year, and experimenting (again) with really, really slow food: An hours-simmered, honey-tinged fruit butter.

Honey-Sweetened Blackberry Butter

Here’s another super-small batch of preserves. Two quarts of fruit cooks down, down, down into about a pint and a half of finished product. I put them up in small (quarter-pint) jars, since honey doesn’t have the preserving power that straight-up sugar does. If you process the jars, they’ll be shelf stable for up to a year, but once you open a jar, keep it in the fridge and use it up within a month or so. 

Berries & Honey
Berries and honey. Not much more to it than that.
  • 4 cups blackberries, washed and picked over carefully to remove stems, bugs, etc.
  • 2/3 cup filtered water
  • 1/2 cup honey
  • 1 – 3 tbsp demerara sugar (optional)
  • juice and zest of half a lemon

Take about half the berries and strain out the seeds (and any tough cores) by running them through a food mill or pressing them through a fine-meshed sieve or chinois into a wide-bottomed, non-reactive pot. Discard the seeds and pulp (I added a couple spoonfuls to a frozen banana, some maple yogurt, and a splash of OJ for a fiber-rich smoothie, then put the rest in the compost bin).

Nothing fancy here, either. Just mash half the berries through a strainer.

Add the remaining whole berries to the pot and set the flame to medium. Stir in the water, lemon juice, and lemon zest. When the berries start to soften, squish them up with a potato masher or the back of a spoon. Reduce heat to low, and let simmer, stirring occasionally, until it’s good and thick.

YMMV, depending on the size of your pan, how juicy your berries are, how ripe your berries are, and how low your burner can be set. My batch took just over three hours—or long enough for me to plow through four loads of vacation laundry.

Load into sterilized jars, and either refrigerate after they cool or process in a hot-water canning bath for ten minutes.

Tiny Jars
I used small jars because the flavor’s so concentrated. And because, once opened, the shelf life is short.

One final note: I picked these berries just shy of fully ripe (1) because I suspected greener berries would have a firmer set, (2) because most of the really big, super-ripe berries had been poked at by birds and/or those iridescent green June beetles, and (3) we were expecting big thunderstorms overnight. After tasting toward the end of cook time, I sprinkled in a few spoonfuls of raw sugar to deepen and soften the flavor a little bit.

7 Comments Add yours

  1. Grandpa C says:

    Sorry you went home with no raspberries. But, you sour
    cherry in whiskey make a wonderful addition to Wisconsin’s
    Signature drink–Brandy- Oldfashioned Sweet. Make two
    if you dare!

    1. Susan says:

      You let me know when you’re ready for another jar, pop. xxoo

  2. Diane says:

    Making a slight variation on your butter. Left out the water, frozen berries didn’t seem to need it and I figured it would just extend cooking time. Saw another recipe that added thyme, so throwing in a little of that as well. Smells divine! Thanks for the recipe!

    1. Susan says:

      Sounds great, Diane. Thyme is a lovely match with blackberries. Sage, too. Thanks for reading—and for writing. Cheers.

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