How Do You Make Pickled Walnuts

You can make pickled walnuts by harvesting green, unripe walnuts in early summer and preserving them in a spiced vinegar brine.
 
This old-fashioned British preserve turns hard, bitter walnuts into a tangy, tender treat that pairs beautifully with cheese and cold meats.
 
If you’ve ever wondered how do you make pickled walnuts, the answer comes down to three key stages: brining, soaking, and jarring in vinegar.
 
It’s a labor of love, but once you taste that first sharp, nutty bite, you’ll understand why people have been making pickled walnuts for centuries.
 
In this post, we’ll walk through how do you make pickled walnuts step by step, from picking the right nuts to sealing the jars.
 
Let’s get started.
 

How Do You Make Pickled Walnuts? The Short Answer

You make pickled walnuts by picking green walnuts before the shell hardens inside.
 
Then you prick them, soak them in brine for about ten days, dry them until they turn black, and finally cover them in spiced vinegar.
 
The whole process takes a couple of weeks, but the actual hands-on work is surprisingly short.
 
Here’s what makes the process work so well:
 

1. You Need Unripe, Green Walnuts

Making pickled walnuts starts with picking the right nuts at the right time.
 
You want walnuts that are still green, firm, and easy to pierce with a skewer.
 
If the shell inside has started to harden, they’re too far along for pickling.
 
In most regions, this window falls in late June or early July.
 

2. Brining Removes the Bitterness

Fresh green walnuts are incredibly bitter and completely inedible straight off the tree.
 
Soaking them in a saltwater brine draws out those harsh tannins and softens the flesh.
 
This is the step that makes pickled walnuts possible in the first place.
 

3. The Nuts Turn Black Before They Hit the Vinegar

After brining, you spread the walnuts out to dry.
 
As they dry, they oxidize and turn jet black, which is exactly what you want.
 
This color change tells you the nuts are ready for the vinegar.
 

What You’ll Need to Make Pickled Walnuts

Before we get into how do you make pickled walnuts, let’s gather everything first.
 
Having your supplies ready makes the whole process much smoother.
 

1. Ingredients

You’ll need about 2 pounds of green walnuts, 8 ounces of salt, and enough water to cover them.
 
For the pickling liquid, grab 2 pints of malt vinegar, 1 ounce of black peppercorns, half an ounce of allspice berries, and a small piece of fresh ginger.
 
You can also add a few cloves, a cinnamon stick, or a pinch of mace for extra warmth.
 

2. Equipment

A large non-metallic bowl works best for brining since metal can react with the tannins.
 
You’ll also want a skewer or fork for pricking, clean glass jars with lids, and a saucepan for the vinegar.
 
A pair of rubber gloves is handy too, because green walnuts stain your hands dark brown.
 

Step-by-Step: How Do You Make Pickled Walnuts?

Now for the fun part.
 
Here’s how do you make pickled walnuts from start to finish.
 

1. Prick and Brine the Walnuts

Prick each green walnut all over with a skewer so the brine can penetrate.
 
Dissolve the salt in water and pour it over the nuts until they’re fully submerged.
 
Leave them to soak for ten days, stirring once a day.
 

2. Drain and Dry Until Black

After ten days, drain the walnuts and discard the brine.
 
Spread them out on a tray in a single layer and leave them somewhere airy.
 
Within a few days, they’ll turn completely black and feel firm to the touch.
 

3. Make the Spiced Vinegar

While the nuts dry, simmer your vinegar with the peppercorns, allspice, ginger, and any other spices.
 
Let it cool completely, then strain out the spices if you prefer a cleaner brine.
 

4. Pack and Cover with Vinegar

Pack the black walnuts into sterilized jars, leaving a little headspace.
 
Pour the cooled spiced vinegar over them until they’re fully covered.
 
Seal the jars and store them somewhere cool and dark.
 

5. Wait Before You Eat

Pickled walnuts need at least a month to mature, though three months is even better.
 
The longer they sit, the more the flavors mingle and the softer the nuts become.
 

Tips for Perfect Pickled Walnuts Every Time

A few small tweaks can make a big difference when you make pickled walnuts.
 
First, always use fresh green walnuts, since older ones won’t soften properly.
 
Second, never skip the brining stage, no matter how tempting it is to rush.
 
Third, make sure your jars and lids are spotlessly clean so nothing spoils.
 
Finally, keep the walnuts fully submerged in vinegar, topping up if needed.
 

So, How Do You Make Pickled Walnuts?

You make pickled walnuts by brining green walnuts, drying them until black, and preserving them in spiced vinegar.
 
It’s a slow process, but the payoff is a jar of tangy, tender nuts you simply can’t buy in most stores.
 
Whether you enjoy them with Stilton, in a sandwich, or straight from the jar, homemade pickled walnuts are worth every bit of effort.
 
Hope this post has helped you understand how do you make pickled walnuts and given you the confidence to try it yourself.