How To Make Black Walnut Powder

You can make black walnut powder by drying and grinding black walnuts into a fine, versatile flour.
 
If you’ve ever cracked open a black walnut and wondered what to do with the nuts beyond snacking, turning them into black walnut powder is a fantastic option.
 
This black walnut powder can be used in baking, as a thickener, or even as a natural dye.
 
It’s a great way to preserve the rich, earthy flavor of black walnuts long after harvest season ends.
 
In this post, we’ll walk through how to make black walnut powder step by step, plus some tips for storing and using it.
 
Let’s dive in.
 

How to Make Black Walnut Powder

Making black walnut powder is a straightforward process, but it does require some patience and the right tools.
 
The basic method involves harvesting, drying, shelling, and grinding the black walnuts.
 
Here’s a breakdown of each step so you can make your own black walnut powder at home.
 

1. Harvest and Gather Black Walnuts

First, you’ll need to gather fresh black walnuts.
 
Black walnuts typically fall from the tree in autumn, usually between September and October.
 
Look for nuts with green or brown husks on the ground.
 
For making black walnut powder, you’ll want to remove the husks as soon as possible because they can stain your hands and anything else they touch.
 
Wear gloves while handling them, as the husks contain juglone, a compound that can irritate skin.
 
Once you’ve collected your black walnuts, you’re ready to move on to drying.
 

2. Dry the Black Walnuts Thoroughly

Drying is a crucial step when making black walnut powder.
 
If the nuts aren’t fully dry, they can mold during storage, which ruins your powder.
 
Spread the black walnuts in a single layer on a screen or mesh rack in a cool, dry, well-ventilated area.
 
Leave them to dry for about two to four weeks.
 
You’ll know they’re ready when the shells feel hard and the nuts rattle slightly when shaken.
 
For quicker results, you can use a food dehydrator on a low setting, but make sure not to overheat them because that can affect the flavor of your black walnut powder.
 

3. Crack and Shell the Black Walnuts

Once your black walnuts are completely dry, it’s time to crack them open.
 
Black walnut shells are notoriously hard, so you’ll need a sturdy nutcracker or a hammer.
 
Place the nut on a hard surface and give it a firm tap to crack the shell without crushing the nut inside.
 
Pick out the nutmeats and discard the shells.
 
This part takes some time, but it’s worth it for fresh black walnut powder.
 

4. Grind the Nutmeats into Powder

Now for the fun part: turning those nutmeats into black walnut powder.
 
You can use a high-speed blender, a coffee grinder, or a food processor.
 
Add a small handful of nutmeats at a time and pulse until you get a fine, powdery consistency.
 
Be careful not to over-grind, or you’ll end up with black walnut butter instead of powder.
 
If you want an extra-fine black walnut powder, sift the ground nuts through a fine mesh strainer and re-grind any larger pieces.
 

Tips for Making the Best Black Walnut Powder

Here are a few extra tips to help you make high-quality black walnut powder.
 

1. Use Fresh Nuts for Better Flavor

The fresher your black walnuts, the better your black walnut powder will taste.
 
Old or rancid nuts will give your powder a bitter, unpleasant flavor.
 
So always start with fresh, recently harvested black walnuts whenever you can.
 

2. Dry Nuts Completely Before Grinding

Moisture is the enemy of black walnut powder.
 
If there’s any moisture left in the nuts, your powder can clump or spoil quickly.
 
Make sure the nutmeats are bone-dry before you grind them.
 

3. Store Black Walnut Powder Properly

Once you’ve made your black walnut powder, store it in an airtight container in a cool, dark place.
 
For longer shelf life, keep it in the refrigerator or freezer.
 
This way, your black walnut powder stays fresh for months.
 

How to Use Black Walnut Powder

Now that you know how to make black walnut powder, let’s talk about how to use it.
 
Black walnut powder is incredibly versatile.
 
You can add it to baked goods like breads, muffins, and cookies for a rich, nutty flavor.
 
It also works as a natural thickener for soups and stews.
 
Some people even use black walnut powder as a natural dye for wood or fabric.
 
And of course, you can sprinkle it over oatmeal, yogurt, or ice cream for a quick flavor boost.
 
The possibilities are endless.
 

So, How Do You Make Black Walnut Powder?

You can make black walnut powder by harvesting, drying, shelling, and grinding black walnuts into a fine consistency.
 
It takes some time and effort, but the result is a flavorful, versatile powder you can use in all kinds of recipes.
 
Just remember to dry your black walnuts completely, grind them carefully, and store your black walnut powder properly to keep it fresh.
 
With these steps, you’ll have your own homemade black walnut powder ready to enjoy whenever you need it.