Preheat your oven to 350°F (175°C) and grease a 9x13-inch baking pan.

In a large bowl, whisk together the dry ingredients: flour, baking powder, baking soda, salt, cinnamon, nutmeg, and ginger.

In a separate bowl, mix the wet ingredients: granulated sugar, brown sugar, vegetable oil, eggs, pumpkin puree, and vanilla extract until smooth.

Gradually add the dry mixture to the wet mixture, stirring gently until combined.

In a small bowl, whisk together the swirl ingredients: powdered sugar, honey, ground cinnamon, and enough milk for smooth consistency.

Layer half of the pumpkin batter in the prepared pan, drizzle half of the swirl on top, and repeat.

Bake for 30-35 minutes until a toothpick comes out clean.

Allow to cool for 15 minutes before transferring to a wire rack to cool completely.