Preheat the oven to 375°F (190°C) and grease a doughnut pan.
In a large bowl, whisk together the flour, sugar, baking powder, nutmeg, and salt.
In another bowl, combine milk, melted butter, vanilla extract, and eggs. Whisk until smooth.
Gradually add the wet ingredients to the dry ingredients and mix until just combined.
Fill the doughnut pan with the batter, about 3/4 full for each mold.
Bake for 15-20 minutes or until a toothpick inserted into the doughnuts comes out clean.
Let the doughnuts cool in the pan for about 5 minutes, then transfer to a wire rack to cool completely.
Decorate the cooled doughnuts with candy decorations to add a spooky Halloween theme.