Place the first six ingredients into a bowl, and beat with a wooden spoon until the mixture is smooth.
Stir in pumpkin mash and orange zest and divide half the mixture evenly between the paper cases, add a half teaspoon chocolate spread and then top with remaining mix.
Bake in a pre-heated oven for 20-25 minutes oven 200°C, 180°C (fan assisted), Gas mark 6 for 20-25 minutes.
Add a little orange juice to the icing sugar until thick and spread over the muffins. Pipe the melted chocolate in 4 circles over the top and then drag a skewer through to give the cobweb effect. Place the sweets and laces on top to look like a spider.