I would never have dreamed it (because on the whole the Chinese food there is well below Toronto standards) but I actually had a very authentic Sichuan food experience in London (UK) at a place called Bar Shu. Some of its dishes featured whole Sichuan peppercorns. Although I eat lots of Sichuan in Toronto, these peppercorns were a complete surprise to me. Does anywhere in Toronto use them?
For those who don't know, these little things are incredibly powerful. Just the teeniest nibble and your tongue and mouth are instantly going to tingle and water like crazy and the sensation takes several minutes to subside. Remarkable.