In a large bowl, whisk together the flour, sugar, baking soda, ginger, cinnamon, cardamom, cloves, allspice and salt. In a smaller bowl, whisk together the egg, pumpkin, milk, coconut oil and vanilla. Add the wet ingredients to the dry, mixing with a large spatula until just combined. Do not overmix! Use an ice cream scoop or 1/4 cup measure to evenly scoop the batter into the muffin liners. Top each with a tablespoon or 2 of the crumble mixture.