What thickness should onions be sliced to?

The appropriate thickness for slicing onions is commonly specified as 1/2 of a tomato. This size ensures that the onions retain their flavor and texture, allowing them to blend well in various dishes without overpowering other ingredients. Slicing them this way helps achieve a balance, especially when they are being used raw in salads or as a topping, as well as when they are cooked, as they can caramelize or soften adequately without becoming too mushy.

Choosing a thickness of 1/2 of a tomato strikes a good balance, as onions sliced too thickly may not cook evenly or could dominate the dish, while slices that are too thin might not provide the desired crunch or flavor. The reference to tomato sizes provides a visual guide that is familiar to most, making it easier for cooks to achieve the right consistency in their preparations.