1 cup butter or margarine
4 squares unsweetened chocolate
2 cup sugar
4 eggs
1 cup all-purpose flour
1/2 teaspoon salt
1 cup chopped California walnuts
1 teaspoon vanilla extract
1 8 oz package cream cheese, softened
Grease a 13 x 9 inch baking pan. In 2 quart heavy saucepan over low heat, melt butter and chocolate. with wire whisk or spoon, beat in 2 cups sugar and 3 eggs until well blended. With wooden spoon, stir in flour, salt, nuts and 1 teaspoon vanilla extract. Spread evenly in pan.
Preheat oven to 350’F. In small bowl with mixer at low speed, beat cream cheese, 1/2 cup sugar, 1 egg and 1 teaspoon vanilla extract until just mixed. At medium speed, beat 2 minutes, occasionally scrapping bowl with rubber spatula.
With large spoon, drop mixture in dollops on top of batter. Using tip of knife, lightly score top surface in a crisscross pattern. Bake 40-50 minutes until toothpick comes out clean. Cook on rack. cut into bars; refrigerate.