How Do You Make Pickled Walnuts

Pickled walnuts are made by harvesting unripe green walnuts in early summer and preserving them in a spiced vinegar brine.
 
If you’ve ever wondered how do you make pickled walnuts, the answer is simpler than you might think, though it does take some patience.
 
The process transforms hard, bitter green walnuts into a tangy, deeply savory condiment that’s perfect with cheese, cold meats, and hearty salads.
 
In this post, we’ll walk through how to 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, unripe walnuts before the shell hardens inside, pricking them, brining them in salt water for about ten days, then simmering them in spiced vinegar and jarring them.
 
The walnuts must be green and soft enough to pierce with a needle all the way through.
 
Once picked, the clock is ticking because the shells begin to harden quickly.
 
After brining, the walnuts turn dark and lose their bitterness.
 
Then they soak up the vinegar and spices, and the result is that classic British pickle you see in jars at the shop.
 
Making pickled walnuts at home gives you control over the spice level too.
 
Here’s what you’ll need and how the process works.
 

What You Need to Make Pickled Walnuts

Before you make pickled walnuts, gather the right ingredients and equipment.
 

1. Green Unripe Walnuts

You’ll need about 2 pounds (1 kg) of green walnuts, ideally picked in late June or early July.
 
They should be firm and easy to pierce with a needle or skewer all the way through.
 
If the needle won’t go through, the shell has started to form and it’s too late to make pickled walnuts with them.
 
Wear gloves when handling green walnuts because they stain your hands brown.
 

2. Salt, Vinegar, and Spices

For the brine, you’ll need about 5 ounces (150 g) of salt.
 
For the pickling liquid, use around 2 cups of malt vinegar or apple cider vinegar.
 
Then add whole spices like cloves, allspice berries, black peppercorns, a cinnamon stick, and a small piece of ginger.
 
Some people also add a little brown sugar to soften the tartness.
 

3. Basic Equipment

You’ll need a large pot, sterilized jars, a needle or skewer, and clean cloths or paper towels.
 
Sterilized jars matter because they keep your pickled walnuts safe and shelf stable for much longer.
 

How to Make Pickled Walnuts Step by Step

Now let’s talk through how to make pickled walnuts from start to finish, because the method really matters.
 

1. Prick and Brine the Walnuts

Prick each green walnut all over with a needle, then place them in a large bowl or jar.
 
Cover them with the salt brine and leave them to soak for 10 to 14 days.
 
Stir or shake the jar every couple of days and change the brine twice during that time.
 
This brining stage is what removes the bitterness and prevents your pickled walnuts from tasting harsh.
 

2. Dry and Darken Them

After brining, drain the walnuts and spread them out in a single layer in a sunny spot or a warm, dry place.
 
They’ll turn from green to black over a day or two.
 
This color change means the walnuts are ready for the vinegar, so don’t rush this step when you make pickled walnuts.
 

3. Simmer Them in Spiced Vinegar

Put the vinegar, spices, and a little sugar in a pot and bring to a gentle simmer.
 
Add the blackened walnuts and simmer gently for about 15 minutes.
 
Then remove the pot from the heat and let the walnuts cool in the liquid.
 

4. Jar and Store Your Pickled Walnuts

Pack the walnuts into sterilized jars, pour the spiced vinegar over them to cover completely, and seal tightly.
 
Store them in a cool, dark place for at least a month before eating.
 
This resting time lets the flavors develop, and it’s what makes homemade pickled walnuts taste so good.
 

5. How Long Do Pickled Walnuts Keep?

Sealed pickled walnuts keep for a year or even longer if stored properly.
 
Once opened, keep the jar in the fridge and use the walnuts within a few months.
 
Always check that the vinegar still covers the walnuts to prevent spoilage.
 

Tips for Making the Best Pickled Walnuts

A few small details make a big difference when you make pickled walnuts.
 
Pick your walnuts early, because soft green nuts pickle far better than partially hardened ones.
 
Use gloves and old clothes during preparation since the juice stains everything it touches.
 
Don’t skip the brining stage, because that’s what makes pickled walnuts edible rather than bitter.
 
And be patient with the resting period since the flavor improves the longer they sit.
 
If you want a sweeter pickle, add a bit more sugar to the vinegar, and if you like heat, drop in a dried chili.
 

So, How Do You Make Pickled Walnuts?

You make pickled walnuts by brining green unripe walnuts in salt water, letting them darken, then preserving them in spiced vinegar.
 
The process takes a few weeks, but the payoff is a jar of rich, tangy pickles that cost far less than buying them.
 
If you’ve been wondering how do you make pickled walnuts at home, now you have the full method from picking to jarring.
 
Give it a try this summer when the green walnuts are on the trees, and you’ll have a supply ready for cheese boards all winter.