How To Make Walnut Jam

You can make walnut jam at home with just a few simple ingredients and a little patience.
 
If you’ve ever wondered how to make walnut jam, the good news is that it’s easier than it sounds, and the result is a rich, nutty spread that tastes amazing on toast, pancakes, or even ice cream.
 
Walnut jam is popular in many parts of the world, especially in Eastern Europe and the Middle East, where green walnuts are turned into a sweet, syrupy preserve.
 
In this post, we’ll walk through how to make walnut jam step by step, including the best time to harvest walnuts, the tools you’ll need, and a few tips to get the flavor and texture just right.
 
Let’s get into it.
 

Why Make Walnut Jam?

Making walnut jam is a wonderful way to use fresh green walnuts when they’re in season.
 
Unlike ripe walnuts that have hard shells, green walnuts are soft enough to slice and cook down into a jam-like consistency.
 
When you make walnut jam, you’re essentially preserving the natural oils and earthy flavor of the nut while sweetening it with sugar and syrup.
 
The process of making walnut jam also softens the bitterness that green walnuts naturally have, turning them into something tender and delicious.
 
Plus, when you make walnut jam at home, you control the sugar level and any added spices, so you can tailor it to your taste.
 
Many people who learn how to make walnut jam discover that it’s a fun project that fills the kitchen with a warm, nutty aroma.
 
And once you know how to make walnut jam, you can experiment with adding vanilla, cinnamon, or even a splash of lemon to change things up.
 

How to Make Walnut Jam: Step-by-Step

Learning how to make walnut jam starts with gathering the right ingredients and tools.
 
Here’s what you’ll need and how to put it all together.
 

1. Gather Your Ingredients

To make walnut jam, you’ll need about 30 to 40 green walnuts, 4 cups of sugar, 4 cups of water, and a tablespoon of lemon juice.
 
You can also add a cinnamon stick or a few cloves if you want a spiced version of walnut jam.
 
Make sure your green walnuts are firm and free of soft spots for the best results when you make walnut jam.
 

2. Prepare the Walnuts

Wash the green walnuts thoroughly and then soak them in cold water for about 24 hours, changing the water a few times.
 
This step helps reduce bitterness, which is important when you make walnut jam.
 
After soaking, drain the walnuts and pat them dry, then use a fork or a small knife to prick each one several times so the syrup can penetrate.
 

3. Cook the Syrup

In a large pot, combine the sugar and water and bring it to a boil, stirring until the sugar dissolves completely.
 
Once the syrup is clear, add the prepared walnuts and reduce the heat to a simmer.
 
This is the heart of how to make walnut jam, because the walnuts need to slowly absorb the syrup over low heat.
 

4. Simmer and Stir

Let the walnuts simmer in the syrup for about 1.5 to 2 hours, stirring gently every so often.
 
As the mixture cooks, the syrup will thicken and turn a deep amber color, and the walnuts will become tender and glossy.
 
If you want your walnut jam to have a thicker consistency, you can cook it a bit longer, but be careful not to let it burn.
 

5. Add Lemon and Spices

About 10 minutes before the walnut jam is done, stir in the lemon juice and any spices you like.
 
The lemon juice helps balance the sweetness and also helps the jam set properly.
 
Once the walnuts are soft and the syrup coats the back of a spoon, your walnut jam is ready.
 

6. Jar and Store

Ladle the hot walnut jam into sterilized jars, leaving a little headspace at the top.
 
Seal the jars tightly and process them in a boiling water bath for about 10 minutes if you plan to store them at room temperature.
 
Otherwise, you can let the walnut jam cool and keep it in the fridge for up to a month.
 
Now you know the basics of how to make walnut jam, and you can tweak the recipe each time you make it.
 

Tips for Perfect Walnut Jam

Here are a few extra pointers to help you make walnut jam like a pro.
 

1. Use Green Walnuts Only

Ripe walnuts with hard shells won’t work for making walnut jam, so harvest your walnuts in early summer when they’re still green and soft.
 
If you use mature walnuts, you won’t get the same tender texture when you make walnut jam.
 

2. Don’t Skip the Soaking

Soaking is a key step in how to make walnut jam because it pulls out the bitterness that green walnuts naturally contain.
 
If you skip it, your walnut jam may taste harsh instead of sweet and nutty.
 

3. Stir Gently and Often

When you make walnut jam, the sugars can scorch if you leave them unattended.
 
Stir gently to keep the walnuts intact while preventing the syrup from sticking to the bottom of the pot.
 

4. Test the Consistency

To check if your walnut jam is done, drop a little syrup onto a cold plate.
 
If it wrinkles when you push it with your finger, it’s ready, and you’ve successfully learned how to make walnut jam.
 

So, How Do You Make Walnut Jam?

You make walnut jam by simmering green walnuts in a sugar syrup until they become tender and the syrup thickens into a rich, amber preserve.
 
The process takes some time, but when you make walnut jam at home, you end up with a unique spread that’s nutty, sweet, and totally worth the effort.
 
Whether you’re spreading it on warm bread or giving jars as gifts, knowing how to make walnut jam is a skill that pays off deliciously.