They're a staple ingredient to so many meals - but we don't often stop to question how they got their name. Red onions can spice up salads, salsas and sandwiches when used raw, or can be thrown into a simmering pan alongside baked fish or mincemeat, to name just a few options.
But social media users have recently been questioning how the much-loved vegetable got its name - especially considering it's purple in colour, not red. One Reddit user asked: "Why is it called a red onion when it's clearly purple? I picked up some red onions at the store and it finally clicked - they're just not red."
