Preheat the oven to 350F. Line a 12-cup muffin tin with paper liners or lightly grease the muffin cups.
In a small bowl, combine the coconut sugar, gluten-free flour, cinnamon, and salt. Add the melted butter or coconut oil and stir with a fork until crumbly. Set aside.
1/3 cup coconut sugar, 1/3 cup Gluten free 1 to 1 flour, 1/2 tsp cinnamon, 1/4 tsp sea salt, 2 tbsp unsalted butter or coconut oil
In a medium bowl, whisk together the gluten-free flour, baking soda, baking powder, pumpkin pie spice, cinnamon, and salt.
2 cups Gluten Free 1 to 1 Flour, 1 1/2 tsp baking soda, 3/4 tsp baking powder, 1 tbsp pumpkin pie spice, 1/2 tsp cinnamon, 1/2 tsp sea salt
In a large mixing bowl, whisk the eggs and coconut sugar until well combined. Add the maple syrup, melted coconut oil, and pumpkin puree and whisk until smooth.
1 cup coconut sugar, 1/2 cup pure maple syrup, 2 large eggs, 3/4 cup coconut oil
Add the dry ingredients to the wet ingredients and gently stir until just combined. Don't overmix.
Divide the muffin batter evenly between the prepared muffin cups. Sprinkle the crumble generously over the top of the muffins.
Bake for 20 to 24 minutes, or until a toothpick inserted into the center comes out clean or with a few moist crumbs.
Let the muffins cool in the pan for 5 to 10 minutes before transferring them to a wire rack.