Preheat oven to 180° C / 350º F. Grease 23cm / 9-inch-square baking pan.

2.

Place chocolate in a dry clean microwave safe bowl and microwave on HIGH (100%) power for 45 seconds and stir.

If there are still whole pieces then microwave at additional 10- to 15-second intervals, stirring just until melted and allow to cool to room temperature.

Using a hand held mixer, Beat sugar and butter in a bowl until creamy.

Add eggs, milk and vanilla extract and beat until well mixed.

Beat in melted chocolate.

Using a metal spoon, just stir or fold in the flour and salt until blended.

Spread into prepared baking pan.

Beat cream cheese OR Smooth cottage cheese and sugar in bowl until smooth.

Beat in egg and vanilla extract.

Drop tablespoons of cream cheese mixture over chocolate mixture.

Swirl mixtures deeply with spoon or blunt edged knife, pulling the chocolate mixture up to surface.

Bake for 30 to 35 minutes. If you feel that the top is browning too quickly, then cover loosely with foil. Bake until a skewer inserted comes out clean.

Cool completely in pan on wire rack.