2½tablespoonssalted butter, (remainder of stick)melted
Instructions
Preheat the oven to 400°F and grease or line your muffin tin for 12 muffins.
Combine the flour, brown sugar, pumpkin spice, baking soda and baking powder into a medium sized mixing bowl and whisk thoroughly to combine.
In a microwave safe measuring cup, melt the butter in the microwave using 15-30 second intervals, just until melted. Combine the melted butter with the buttermilk, followed by the beaten egg, vanilla, and pumpkin puree.
Make a well in the center of the dry ingredients and pour the wet ingredients into the well. Using a rubber spatula, fold the dry ingredients and the wet ingredients until just combined. Do not over mix.
Use a large spring loaded cookie scoop to fill 12 muffin wells.
Bake for 14-18 minutes until the tops are domed and a toothpick comes out clean.
While the muffins are baking, using two small, but deep bowls, melt butter in one and mix together the turbinado sugar, salt, and pumpkin spice in the other.
Once finished baking, allow the muffins to cool for about 5 minutes, until just cool enough to touch without burning yourself. One muffin at a time, brush the top with melted butter then immediately dip in the sugar mixture and place on a rack to cool completely. Repeat with all 12 muffins.