Let’s get into the nitty-gritty of making this cozy treat. Here’s how you do it:

1. Preheat your oven to 350°F (175°C) and grease a 9×13-inch baking pan.
2. In a large bowl, whisk together the flour, sugar, baking powder, salt, cinnamon, and nutmeg.
3. In another bowl, combine the pumpkin puree, milk, melted butter, vanilla extract, and eggs. Mix until well blended.
4. Gradually add the wet ingredients to the dry ingredients, stirring until just combined. Be careful not to overmix!
5. Pour the batter into the prepared baking pan, smoothing the top with a spatula.
6. For the cinnamon swirl, mix together the brown sugar and 2 teaspoons of cinnamon. Sprinkle the mixture evenly over the batter.
7. Use a knife to gently swirl the cinnamon-sugar into the batter for a marbled effect.
8. If desired, sprinkle pecans on top for added crunch.
9. Bake for 30-35 minutes, or until a toothpick inserted into the center comes out clean.
10. Let the cake cool in the pan on a wire rack before slicing and serving.

And there you have it! A scrumptious cake that fills your home with spicy-sweet aromas. I like to use a knife to create swirls that remind me of the messy yet charmingly imperfect art my kids bring home from school.