Preheat the oven to 200 °C (400 °F) and prepare a baking sheet with parchment paper.
In a food processor, combine the flour, brown sugar, spices,baking soda and salt. Add the cold vegan butter, and use pulse until the mixture resembles course crumbs. If you don't have a food processor, use a fork, your hands or a pastry cutter to work the butter into the dry ingredients. a pastry cutter or your hands to work the butter into the dry ingredients. It should resemble coarse crumbs. Transfer the mixture to a large mixing bowl if you haven't already.
Add the pumpkin puree, almond milk and vanilla with a large wooden spoon or a paddle attachment for your mixer until a soft dough forms.
Lightly flour your countertop and knead the dough into a circle, about one inch thick.
Using a dough cutter or large knife cut into 8 triangles by cutting the circle down the middle, into fourths and then cutting into 8ths.
Place on prepared baking sheet and bake for 14-16 minutes, until lightly golden brown on top. Let cool for ateast 15 minutes.
Glaze
Combine the powdered sugar,cinnamon and 15 ml of almond milk in a small bowl with a whisk until smooth. add additional milk as necessary to get to right consistency.
Drizzle the cooled scones with glaze - letting the glaze set before serving.