Freeze your milk chocolate squares for at least 2 hours before stuffing to prevent them from melting during assembly and ensure a perfect gooey center when baked.

The cream cheese in your dough adds richness and helps maintain chewiness; ensure it's softened to room temperature before mixing for even distribution and optimal texture.

Press the dough firmly around each chocolate square, ensuring no gaps remain, so the chocolate stays contained during baking rather than leaking out onto the pan.

Remove cookies when edges are set but the center still appears slightly underdone—they'll continue cooking from residual heat and stay perfectly chewy with a melted chocolate core.

Lightly toast your mini chocolate chips in a dry pan for 1-2 minutes before mixing into the cake batter to intensify chocolate flavor and add subtle depth to the cookie base.