Start by assembling all your ingredients. In a large mixing bowl, combine the milk, pumpkin puree, egg, oil, and vinegar. Stir the mixture thoroughly until it’s smooth and well blended.
In a separate bowl, whisk together the flour, brown sugar, baking powder, baking soda, cinnamon, allspice, ginger, and salt. Gradually add this dry mixture to the pumpkin mixture, whisking gently until everything just comes together. Avoid overmixing.
Lightly coat a griddle or frying pan with cooking spray and preheat it over medium-high heat. Scoop 3 to 4 tablespoons of the pancake batter onto the heated surface and gently spread the batter with the back of a spoon for even thickness.
Cook for around 2 minutes or until you see small bubbles forming on the surface. Flip the pancakes and cook for an additional 2 minutes, or until they turn a beautiful golden brown. Repeat this process with the remaining batter.
Serve immediately while hot, and enjoy the fluffy, spiced pumpkin goodness!