Line a muffin tin with paper liners.
To a large saucepan over low heat, add the butter and golden syrup. Heat until melted, but not bubbling or brown. Add the cocoa powder, stir gently until completely melted and smooth.
Remove from the heat and fold in the cereal, mixing well until every piece is coated in chocolate.
Spoon the mixture (about 3 tablespoons in each) evenly into the muffin liners and top with your choice of sprinkles or mini eggs.
Transfer to the fridge to chill until set.
Whisk in the cocoa powder until smooth, then remove the pan from the heat.
Remove from the heat and fold in the cereal, mixing well until every piece is coated in chocolate.
Spoon the mixture (about 3 tablespoons in each) evenly into the muffin liners and top with your choice of sprinkles or mini eggs.
Transfer to the fridge to chill until set.