Grow 'endless' onions with 1 simple method using cooking leftovers

Do you know your onions? If so, how about going one step further and growing your own? One TikTok user has shown off their clever hack for growing an "endless" supply of green onions - so if you fancy following suit, then do take note.

The simple trick involves using what you have already bought in the , but means that you will never have to buy them for yourself again. Instead, you will have a constant suppy for them right at home. Green onions, also called spring onions, are a popular and are added to dishes because of their strong flavour.

You will find green onions in , sandwiches, curries and much more. Brits buy huge amounts of green onions but not many realise just how easy it is to grow your very own, which will save them money give a little sense of pride in growing your own food. Zero Waste Store, a sustainable online marketplace, showed off the easy method in a video which received thousands of views.

In the video, we see someone chop the ends (root ends) of their bunch of green onions. This is the part you then use to start growing more.

They place them in a jar and cover them with water. After that, the jar is left by the window and we see the onions start to sprout. According to these experts, the spring onions will be ready to eat in a week and then, you simply go through the process again.

Not only is it a great way to save a bit of cash when you are in the supermarket, you will be reducing your food waste as well. To make sure your green onions grow successfully, you will need to make sure that the water is changed every week and that the ends stay submerged.

Others suggest changing the water every two to three days, so that is perhaps the best way to ensure that your green onions grow as well as they can.

While this handy hack can be kept inside the house, you can also plant these leftovers in the garden to grow them. That way, the plant will keep reproducing after you cut it.

If you leave it in the pot, you run the risk of it eventually stopping growth, so growing them in the garden is your best bet for endless supplies of green onion.