Preheat oven to 375 F, grease a muffin pan or line with paper muffin liners. Set aside.
In a large bowl, combine flours, sugar, baking powder, spices, xanthan gum, baking soda, and salt, set aside.
In a blender, process pumpkin puree, milk, oil, maple syrup, eggs, and vanilla until smooth.
Add pumpkin mixture all at once to the bowl of dry ingredients. Stir just until moistened (batter should be slightly lumpy.)
Divide batter among 12 prepared muffin cups. If you’re adding any toppings - pepitas, sugar, etc - sprinkle it over each muffin now.
Bake for 20-22 minutes or until golden brown and a wooden toothpick inserted in centers comes out clean.
Cool in muffin cups on a wire rack for 5 minutes.
Remove from muffin cups; serve warm.