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Making basil cubes is one of the smartest kitchen tricks you can add to your routine.
Making basil cubes is simple, quick, and a fantastic way to preserve that fresh garden flavor all year round.
If you’ve ever watched your basil wilt in the fridge, you know how heartbreaking it is to waste those fragrant leaves.
Today, I’m going to walk you through exactly how to make basil cubes so you can enjoy that summery taste whenever you need it.
This method is perfect for pesto, soups, stews, sauces, and so many other dishes.
Let’s dive into the best ways to make basil cubes and keep your cooking vibrant.
Why You Should Make Basil Cubes
There are so many reasons why making basil cubes beats any other preservation method.
First, freezing basil in ice cube trays locks in the essential oils that give fresh basil its incredible aroma.
When you dry basil, it loses much of that punchy flavor, but making basil cubes keeps it tasting garden-fresh.
Second, it’s incredibly convenient to have ready-to-use portions at your fingertips.
Instead of chopping herbs after a long day, just pop out a cube and toss it into your pan.
And third, making basil cubes is the best way to use up a bumper crop before it goes bad.
If you grow your own basil, you know it can bolt and turn bitter quickly, so this method saves every last leaf.
You can even make basil cubes with olive oil, water, or stock, each giving you different results for different recipes.
Let me break down the main techniques so you can choose the one that works best for your kitchen.
How to Make Basil Cubes: Step-By-Step Methods
Now let’s get to the good stuff—the actual process of making basil cubes from start to finish.
The great news is that you don’t need any fancy equipment, just a blender or food processor and an ice cube tray.
Here are the three best ways to make basil cubes, each tailored for different cooking needs.
1. Basil Cubes with Olive Oil: The Classic
This is the most popular way to make basil cubes, and for good reason.
The olive oil not only preserves the basil but also helps release its fat-soluble flavors.
Start by washing your basil leaves and patting them completely dry with a towel.
Any water left on the leaves can cause ice crystals, which will degrade the texture over time.
Add the dry leaves to a food processor and pulse them until finely chopped.
Then, slowly pour in enough extra-virgin olive oil to form a thick, slushy paste.
Spoon this mixture into your ice cube trays, pressing it down to remove any air pockets.
Freeze for at least four hours or until solid, then pop the basil cubes out and transfer them to a freezer bag.
These olive oil basil cubes are perfect for sautés, marinades, and finishing dishes with a burst of flavor.
2. Basil Cubes with Water: The Light Option
If you want to make basil cubes without the added fat, the water method is your best bet.
This is great for soups, broths, and dishes where you don’t want the flavor of olive oil to compete.
To make basil cubes with water, simply puree the fresh leaves with a little water in a blender.
You’ll want just enough water to get the leaves moving, no more than a few tablespoons per packed cup.
Another variation is to leave the leaves whole and just fill the tray with water over them.
This works, but the pureed version releases more flavor, so I recommend blending.
Pour the green liquid into ice cube trays and freeze until solid.
After freezing, store these basil cubes in an airtight container or zip-top bag.
When you’re ready to cook, drop a cube straight into your pot of soup or simmering sauce.
They melt quickly and infuse your dish with that herby goodness without any extra oil.
3. Basil Cubes in Stock: Flavor Boost
For an even more savory basil cube, try freezing basil into vegetable or chicken stock.
This method gives you a concentrated flavor bomb that’s amazing for risottos and braises.
Just pack your chopped basil leaves into the ice cube molds and pour cool stock over the top.
Make sure the leaves are fully submerged so they don’t get freezer burn.
Freeze for several hours, then transfer the cubes to a freezer-safe bag.
You can also make basil cubes with a mix of stock and a little lemon juice to brighten the flavor.
When you use these basil cubes, you’re adding both the herb and a ready-made liquid base.
It cuts down on prep time and adds layers of flavor that plain water just can’t match.
This is definitely one of my favorite ways to make basil cubes for winter cooking.
Tips for Making Perfect Basil Cubes Every Time
Now that you know the core methods, let me share some pro tips to ensure your basil cubes freeze beautifully.
These little details make a big difference in the quality and shelf life of your frozen herbs.
Blanch or Not to Blanch?
You might have heard about blanching basil before freezing to preserve color.
The truth is, blanching can actually make basil turn mushy and lose its fresh taste.
Since you’re pureeing basil for cubes, blanching isn’t necessary at all.
The oil or liquid medium already protects the herbs during the freezing process.
If you skip blanching, your basil cubes will retain a brighter green color and better texture.
Dry Your Leaves Thoroughly
Moisture is the enemy when you make basil cubes.
Excess water leads to large ice crystals that rupture the leaf cells and cause sogginess.
Use a salad spinner and then pat the leaves with a clean kitchen towel.
Wait until the leaves are completely bone-dry before you chop or puree them.
This single step will make the biggest difference in how fresh your cubes taste later.
Portion Sizes That Make Sense
Think about how much basil you typically use in a recipe before you fill your trays.
Standard ice cube trays hold about 1 to 2 tablespoons, which is perfect for a single batch of sauce.
If you love big, bold flavor, consider using silicone mini-muffin pans for larger cubes.
You can also fill the trays halfway for smaller portioned basil cubes to use in quick dishes.
Once they’re frozen solid, make sure to label your bag with the date and the liquid you used.
Frozen basil cubes will keep their best quality for up to six months in the freezer.
So, How to Make Basil Cubes?—Final Thoughts
So, how to make basil cubes?—it’s as simple as blending leaves with a liquid and freezing them.
You can make basil cubes with olive oil, water, or stock, depending on your recipe needs.
Making basil cubes is a brilliant way to prevent waste and enjoy fresh flavor during the off-season.
I hope this guide has shown you exactly how to make basil cubes that will elevate your cooking.
Next time your basil plant is overflowing, don’t let it go to waste—grab an ice cube tray and get freezing.
Your future self will thank you when you’re stirring a fragrant basil cube into a cozy winter soup.
Happy cooking, and enjoy your delicious homemade basil cubes all year long.