Raw onion has an intense and overpowering flavour that is not always pleasant. Sauteing onion will bring out its natural sweetness, but what do you do when you need to add raw onion to a recipe before cooking?
Place sliced, diced, chopped or grated onion into a sieve and pour boiling water over the top. While it won't sweeten the onion it will eliminate the overpowering and unpleasant raw flavour by par cooking it. Just remember to squeeze out some of the excess water.
This is a great tip for adding raw onion to muffins, breads, soup, casseroles or any recipe where a raw onion flavour would upset the balance.