- Heat your oven to 180°C / gas 4 conditions and arrange two 12 hole cupcake tins with the cases 
- Beat sugar and butter until the mixture becomes creamy. Combine the eggs and chocolate with proper beating. 
- Then mix the Cocoa powder , baking powder, food coloring and milk into the mix.Using a spoon add the mixture evenly into cupcake cases and level the tops. 
- Bake for nearly 20 min until the cupcakes are spongy and fluffy. First allow to cool within the tin and then place on a wire rack for cooling completely. 
- For making the buttercream, beat your butter until it becomes soft and then mix with the icing sugar. Mix the black coloring and vanilla to mix well and transfer into a piping bag which is connected with a nozzle. 
- To make monster faces,m you can cut small circles of blue and green fondant that fits the top of the cupcakes and fit them to the cupcake with a little bit of buttercream. You can add facial parts like mouth , nose and eyes using sweets or with icing eyes. 
- For skeleton shapes you can cut shapes with the white fondant and fix  them in relevant places  using buttercream. 
- In addition to monster faces you can incorporate any other creative halloween funny ideas into these cupcakes as you wish.