Place the flour, sugar, cocoa powder, baking powder, baking soda, gingerbread spice mix and salt in a large bowl and mix together.
Add the milk, vegetable oil, eggs and vanilla extract and mix with an electric mixer until combined.
Slowly add the boiling water and mix until well combined.
Grease a gingerbread man cake pan and dust with cocoa powder instead of flour. This will create an even richer flavor! Pour the batter into a pan and bake at 350F for 40-45 minutes, until a skewer inserted into the center comes out clean. Cool for 15 minutes in the pan, then turn onto a wire rack and cool completely.