01 - Line a 12-hole muffin tin with paper cupcake cases and set aside.
02 - Set a heatproof bowl over a saucepan of simmering water to create a double boiler. Add milk chocolate, dark chocolate, butter, and golden syrup. Stir continuously until completely smooth and melted, then remove from heat.
03 - Gently fold cornflakes into the chocolate mixture until evenly coated, taking care not to crush the flakes.
04 - Divide chocolate-coated cornflakes evenly among paper cases. Press lightly with the back of a spoon to create nest shapes with a shallow hollow in the center.
05 - Place 2-3 mini candy-coated chocolate eggs in the center of each nest while chocolate is still slightly tacky.
06 - Refrigerate for at least 30 minutes or until completely firm and set.
07 - Carefully remove nests from the muffin tin and peel away paper cases before serving.