Cream cheese brownies

1. Melt the chocolate and 3 tablespoons butter in a microwave or over very low heat, in a saucepan ,stirring constantly.
2. Blend reminding butter with cheese until softened.
3. Gradually add ¼ cup of the sugar, beating well.
4. Blend in one egg, 1 tablespoon flour and ½ teaspoon vanilla.
5. Set aside.
6. Beat reminding 2 eggs until creamy and thick and light in color.
7. 6 gradually beat in remaining ¾ cup sugar, beating until thickend.
8. Add baking powder, salt and ½ cup flour.
9. Blend in cooled chocolate mixture, nuts and 1 teaspoon vanilla.
10. Spread half of the chocolate batter in greased 8 or 9" pan. 10. Add cheese mixture, spread out evenly.
11. 1Top with tablespoon fulls of remaining chocolate batter.
12. 1Zigzag a spatula through batter to marble it. 1Bake in 350°F oven for 35-40 minutes, or until top springs back when lightly pressed in center.
13. 1Cool, cut into squares.