Preheat oven to 350° F. Spray a nonstick muffin tin with cooking spray. You can also bake the muffins in a mini muffin pan.
Place butter in a large bowl. Melt in the microwave.
6 tablespoons (85g) unsalted butter
To the bowl with the melted butter, add the pumpkin, honey or pure maple syrup, and milk. Whisk to combine. Whisk in the eggs and vanilla extract.
1 cup (244g) canned pumpkin puree, ½ cup (168g) honey or pure maple syrup, ¼ cup (60mL) milk, 2 large eggs, 1 teaspoon vanilla extract
Add the baking soda, baking powder and salt and whisk until well combined. Whisk in the pumpkin pie spice (or individual spices listed in ingredients above).
1 teaspoon baking soda, ½ teaspoon baking powder, ½ teaspoon salt, 1 tablespoon pumpkin pie spice Using a rubber spatula, mix in the white whole wheat flour and chocolate chips. Be careful to not over mix the batter.
1 ½ cups (180g) white whole wheat flour, ½ cup (100g) chocolate chips
Scoop batter into the prepared muffin pan (a large scoop makes this quick and easy). Add a few more chocolate chips to the tops of the muffins if desired.
Bake muffins for 15-18 minutes, until a tester inserted into the center of a muffin comes out clean. (Mini muffins will take about 12 minutes to bake.) Let muffins cool in the pan for 10 minutes and then transfer to a wire rack to finish cooling. Serve warm or at room temperature.