In a large bowl, crush the Oreos into medium-sized chunks.
Break the chocolate into pieces and add it to a saucepan along with the butter, golden syrup and cocoa powder. Melt gently over low heat.
Pour the melted mixture into the bowl with the crushed Oreos and mix well. Once everything is coated in the chocolate, press the mixture into your lined tin.
Melt the white chocolate over low heat then spread it over the top of the tray bake. Top with Creme Egg halves and Easter sprinkles.
Refrigerate the whole thing for 3 hours until firm. Then cut into slices and enjoy!
Video
Notes
If using milk chocolate, use 180g of butter and 6 tablespoons of golden syrup to prevent the mixture from seizing.
Can be stored in an airtight container in the fridge for up to 1 week.