Instructions:
1. Preheat and Prepare the Pan:
Preheat your oven to 350°F (175°C).
Grease and flour a 9×13-inch baking pan or line it with parchment paper for easy removal.
2. Mix the Dry Ingredients:
In a medium bowl, whisk together the flour, baking soda, cinnamon, nutmeg, and salt. Set aside.
3. Cream the Butter and Sugar:
In a large bowl, cream together the softened butter and brown sugar using a hand mixer or stand mixer until light and fluffy, about 2-3 minutes.