01 -  Preheat oven to 350°F (175°C). Line a muffin tin with 12 paper liners. 
 02 -  In a large mixing bowl, whisk together the all-purpose flour, granulated sugar, brown sugar, baking powder, baking soda, salt, cinnamon, nutmeg, and ginger until evenly combined. 
 03 -  In a separate bowl, blend the canned pumpkin puree, vegetable oil, eggs, vanilla extract, and milk until the mixture is smooth. 
 04 -  Pour the wet mixture into the dry ingredients and gently stir until just combined. Avoid overmixing to maintain a tender texture. 
 05 -  Divide the batter evenly among the lined muffin cups, filling each about three-quarters full. Stand one pretzel rod upright in the center of each muffin. 
 06 -  Place in the oven and bake for 18 to 20 minutes, or until a toothpick inserted beside the pretzel emerges clean. Let muffins rest in the tin for 5 minutes, then transfer to a wire rack to cool completely. 
 07 -  In a microwave-safe bowl, combine chocolate chips with unsalted butter. Microwave in 15-second intervals, stirring in between, until glossy and smooth. 
 08 -  Drizzle the melted chocolate over the cooled muffins. Top each with mini marshmallows, then sprinkle graham cracker crumbs evenly. 
 09 -  Gently toast the marshmallows using a kitchen torch until they achieve a light golden color.