Quick Pickled Onions - Herriott Grace   I love a good sandwich. I especially love a good sandwich with some sort of pickle. But until recently I hadn't made my own.       I found the inspiration to give them a try when I was walking through Toronto's Chinatown a few saturdays ago. It's a brilliant place on weekend mornings. The streets are full and bustling then, the shops feel like they're overflowing with produce.       The woman I bought my onions from said she had grown them in her backyard. They were tiny and pink and sort of beautiful I thought. I like that she and other vendors form a long line up Spadina where Dundas crosses. They sell houseplants they've propagatedvegetables from their backyards and other little things. It's a hodgepodge row of tables and upside-down milk crates that runs up the curb toward College. There's something about that row of them for me, something that's kind of awesome.     All that said, try the onions. They're simple and pretty and super tasty. xo, N       Quick Pickled Onions - Herriott Grace   [amd-zlrecipe-recipe:22] A bit of history on Toronto's Chinatowns, plus some old visuals. PHOTOS: Nikole Herriott