Cold and flu season is still here in full force, and everyone is talking elderberry syrup! Have you tried it yet? People have been swearing by this natural cold and flu remedy during the winter months since, literally, the 1600s. In other words, long before Facebook. Ha.

You can buy sugar-laden versions of elderberry syrup at your local grocery, but there are thousands of healthier DIY recipes on the internet. So how do you pick the right one?

Well, after a ton of looking around, asking friends, researching, and looking around some more, I think I found the best elderberry syrup recipe from Cassie at Wholefully.

Related: 5 foods to help boost your immune system. Take that, colds and flu!

The one elderberry syrup recipe for cold and flu season: Wholefully's recipe has everything you need!

Cassie is a certified holistic nutritionist, and she also happens to be immune-compromised herself. So I trust the science behind her elderberry syrup recipe, not just because she has studied it but also because she relies on it to keep her family healthy.

It requires no fancy equipment, it just takes 5 minutes of prep time, and she even offers a printable label on her site!

I also appreciate her honey to syrup ratio; it’s much lower than many other recipes, making it thinner and easier to take every single day during cold and flu season, which is something you might consider.

And parents, take note: Cassie also has a variation that lets you turn her elderberry syrup into gummies for your kids. Head over, stat!