What is the correct procedure before dicing an onion?

To properly prepare an onion for dicing, the initial step involves cutting off both the stem and root ends. This procedure is essential because removing these ends not only makes it easier to peel the onion but also helps prevent any strong flavors from dominating the cutting process.

By eliminating the root end, which can be quite gnarly and release sulfur compounds that cause the eyes to tear up, you ensure a more pleasant experience while dicing. Additionally, cutting off the stem end provides a flat surface for stability, which enhances safety during the dicing process.

After this first step, the onion can be peeled, and then it’s ready for dicing. The other options, like washing or soaking the onion, while potentially helpful in some contexts, do not address the critical first step needed to prepare for dicing effectively.