Preheat the oven to 400°F and lightly oil a 9-inch pie plate.
Stir the graham cracker crumbs, melted butter, sugar, cocoa, and cinnamon together in a large bowl.
1 ½ cups vegan graham cracker crumbs, ½ cup vegan butter,, ¼ cup organic granulated sugar, 3 tablespoons unsweetened cocoa powder, 1 teaspoon ground cinnamon
Transfer the graham cracker mixture to the pie plate and press it firmly into the bottom and sides.
Place the pie plate into the oven and bake the crust until it darkens slightly, 8 to 10 minutes. Place it on a cooling rack when done.
While the pie cools, place all of the filling ingredients into the bowl of a food processor fitted with an s-blade. Blend until smooth, stopping to scrape down the bowl as needed. (Note 4)
1 (12 ounce/340 gram) package firm silken tofu, 1 ½ cups vegan chocolate chips,, 1 teaspoon vanilla extract, Pinch salt
Transfer the filling to the pie crust (it doesn't need to be fully cooled) and smooth out the top with a spatula.
Place the pie into the refrigerator and chill until the filling is fully set, about 2 hours.
Slice and serve.