In a medium to large saucepan, heat the extra virgin olive oil over medium-high heat. Look for the oil to shimmer slightly, which indicates it’s hot and ready for cooking.
Add the onion to the pan. Stir it around, letting it cook until caramelized, about 8 minutes. You want the onion to turn a lovely golden brown, which adds sweetness.
Next, add the carrots, parsnips, leeks, and celery to the pot. Stir everything together and continue to cook for about 10 minutes until the vegetables start to soften. You’ll notice a delightful medley of colors and aromas filling your kitchen.
Now, add 10 cups (2½ quarts) of water to the pot. This is where the magic happens. Incorporate the kale leaves, thyme, parsley, ginger, and bay leaf. Bring the mixture to a boil, then reduce the heat to a gentle simmer.
Let your broth simmer for about 1 hour. As it simmers, you should see the water transforming into a delicious, golden broth. The aroma will be comforting and inviting.
After an hour, remove the pot from the heat. Take a fine sieve or strainer and strain the broth into another pot or bowl. Press down on the vegetables to squeeze out as much juice and flavor as possible. Discard the solids; they’ve done their job!
Your Homemade Vegetable Broth can be refrigerated for 3 to 4 days. Perfect for all those delicious soups you’re planning!
If you’d like, you can also freeze portions of the broth in containers or ice cube trays for up to 3 months. This way, you’ll always have some on hand for future meals!