Line an 8×8-inch pan with parchment paper, leaving overhang.

Melt milk chocolate chips, condensed milk, and butter over low heat, stirring constantly until smooth.

Remove from heat and stir in vanilla extract and salt.

Let mixture cool 2–3 minutes, then gently fold in Cadbury Eggs.

Pour into prepared pan and smooth the top.

Add extra eggs or drizzle on top if using.

Refrigerate until fully set, then lift out and slice into squares.