If your onions often sprout, go soft, turn dark, get moldy or taste funny, your storage method may not be ideal.
Onions can store well, but they’re picky. They prefer being stored at 4-10°C /40-50° F, that’s warmer than your fridge but cooler than room temperature. If you store onions too hot, too cold or too humid, they may sprout, go moldy or go soft. Oh and they don’t like being stored next to potatoes – the natural gases released by potatoes will make onions sprout faster, and vice versa. So you see, finding the right spot can be tricky.
That’s why freezing or dehydrating are good options. Of course delicious recipes like French Onion Soup, caramelized onions on Focaccia or sautéed onions and mushrooms are good too!