Grease the bottom and sides of your slow cooker basin.
In a large bowl mix together the chocolate sponge ingredients until you have a smooth thick batter.
100 g Unsalted Butter, 3 Eggs, 60 g Caster Sugar, 60 g Light Brown Sugar, 240 g Self Raising Flour, 1 teaspoon Baking Powder, 40 g Cocoa Powder, 150 ml Milk, 1 teaspoon Vanilla Extract
Fold in the mini creme eggs and spoon the batter into the buttered slow cooker basin.
156 g Cadbury creme egg minis
Sprinkle over the light brown sugar and cocoa powder, then pour over the boiling water.
125 g Light Brown Sugar, 20 g Cocoa Powder, 450 ml Boiling Water
Slow cook on high for 2.5 hours. As all slow cookers vary, it's best to start checking after 2 hours. You want the top to be almost set but still have a slight wobble.
Place the halved creme eggs on top of the pudding and slow cook for a further 30 minutes to 1 hour.
3 Cadbury Creme Eggs