Preheat your oven to 400°F (200°C).
Grease an 8-inch square baking dish or line it with parchment paper.
In a large mixing bowl, whisk together the cornmeal, flour, baking powder, baking soda, cinnamon, nutmeg, and salt.
In another bowl, combine the pumpkin puree, honey (or maple syrup), vegetable oil, and almond milk. Whisk until smooth.
Pour the wet mixture into the dry ingredients and stir gently until just combined.
Pour the batter into the prepared baking dish and spread it out evenly. Bake for about 25 minutes or until a toothpick comes out clean.
In a small bowl, mix softened plant-based butter with honey (or maple syrup) and ground cinnamon until creamy.