Is it better to use white or red onions? Other than the colour, they also smell and taste different. The best choice depends on what you want to use it for. White onion smells stronger, tastes spicier and sweeter and is better suited to wok cooking than the red variant.
The red onion has a much more striking colour but the taste and smell are a bit milder. Another difference is that the red onion is filled with more antioxidants, vitamins and minerals, making it the slightly healthier option.