When the Canadian chain Pizza Pizza announced in March that they were introducing gluten-free pizza dough in a pilot program at 50 of their locations around Toronto, people took notice. Not only did the news hit the blogosphere — on Toronto Celiac and other websites — but the Toronto Star reported the story as well.

Here’s an update: the response to the gluten-free pizzas was so overwhelmingly positive that Pizza Pizza has expanded the program. All 531 of the company’s locations in Quebec and Ontario now offer gluten-free crusts. I’ve finally tasted the pizza for myself, I can understand why it’s become so popular. Made from rice flour, potato starch, water, non-hydrogenated canola oil, sugar, salt, methylcellouse, yeast, and monoglyerides, it’s crispy, it’s delicious, and it holds up well even when reheated.

There are a couple of things to watch for when ordering this pizza. The most important is that not all of the toppings are gluten-free. Want pepperoni with it? Then ask for the New York-style pepperoni, which is celiac-safe, instead of the standard “classic” pepperoni, which contains wheat. The gluten-free crust is currently available only in a medium pizza, which will feed two people, and there’s an additional $3.25 charge for it. But this is a great option for pizza-lovers on a gluten-free diet — and the ready-in-20-minutes-or-it’s-free rule still applies.

UPDATE (06/16/08): This post originally stated that gluten-free pizza crusts are available in all Pizza Pizza outlets across Canada. While this is true of the outlets run under the name Pizza Pizza, it is not true of the Pizza 73 outlets the company owns in Saskatchewan, Alberta, and British Columbia.