Preheat the oven to 350 degrees. In an 8x13 glass baking dish, place the chopped pears (either freshly cut or canned) and evenly spread out in the dish. Set the baking dish aside.
In a medium mixing bowl add the gluten-free flour blend, cane sugar, and ground cinnamon. Mix together. Add two tablespoons of vegan butter (or coconut oil) and using two knives or a pastry cutter, cut the butter into the flour/sugar mixture. Add more butter as needed (one tablespoon at a time) until it crumbles.
Evenly spread the crumble over the pears. Place the baking dish in the preheated oven and bake for 25 minutes or until the crumble is golden brown and the pears are bubbling.
Remove the pear crisp from the oven, let cool, and then serve.
Store leftovers in a covered container in the fridge for up to 3 days.