-
Preheat oven to 400 degrees. Spray muffin tins with cooking spray, or line with muffin cups.
-
Whisk the flour, granulated sugar, baking powder, baking soda, cinnamon, and salt in a medium bowl until combined. Add toasted, chopped macadamia nuts to the dry mixture.
-
In a large bowl, whisk the eggs until lightly beaten, then whisk the brown sugar until thick and dark brown. Add the pumpkin, milk, melted butter, and vanilla. Next add 2 tsp. orange zest, and combine well.
-
Fill the prepared muffin tins 3/4 full. Bake for 18-22 minutes, checking to see the tops are brown, and cracking. Use a toothpick to check to make sure they are baked in the center.
-
Let cool on a wire rack for 5-10 minutes, then carefully release each muffin and let cool on rack at least five more minutes.
-
Once cooled, frost the muffins with cream cheese frosting.