Annabel Karmel's Halloween spiders

Makes: 18 cakes
Prep time: 20 mins
Cook time: 20 mins

For the cakes:
170g/6oz dark chocolate, chopped
170g/6oz butter, cut into 2cm cubes
200g/7oz soft light brown sugar
3 eggs, at room temperature
1tsp vanilla extract
2tbsp sour cream
150g/5oz self raising flour
2tbsp cocoa powder
Pinch of salt
85g/3oz milk chocolate, finely chopped or chips (optional)

For the decoration:
100g/4oz milk chocolate
Liquorice laces
16 chocolate marshmallow teacakes
Liquorice Allsorts
M&Ms
Tube of writing icing

You can also see the ingredients and recipe here.