I followed a Jaime Oliver recipe for curry, which started with grating onion, ginger and garlic. I liked the curry, but grating an onion is a miserable job. He said that technique unlocked the onion’s ‘sweetness’. How much difference do you think I’d notice if I used a food processor?
Not to mention, but the lachrymator is fairly unstable, and its pungency won’t last nearly as long when the onion has been pulverized. Bigger pieces hang onto their alliinases, and, unless you cook those bigger pieces a lot, when you bite them, you’ll get that onion crying smelly flavor.