Cream Cheese Brownies
["1 (4 oz.) pkg. Baker's German's sweet chocolate", "5 Tbsp. butter or margarine", "1/2 tsp. baking powder", "1/4 tsp. salt", "1/2 c. flour", "1/2 c. coarsely chopped nuts", "1 Tbsp. all-purpose flour", "1 1/2 tsp. vanilla", "1 (3 oz.) pkg. cream cheese, softened", "1 c. sugar", "3 eggs"]
["Melt chocolate and 3 tablespoons of butter in a small saucepan over very low heat, stirring constantly.", "Cool.", "Blend remaining butter with cheese until softened.", "Gradually add 1/4 cup of sugar, beating well.", "Blend in 1 egg, 1 tablespoon flour and 1/2 teaspoon vanilla.", "Set aside.", "Beat remaining 2 eggs until thick and light color.", "Gradually add remaining sugar; beat until thick.", "Add baking powder, salt, and 1/2 cup flour.", "Blend in cooled chocolate mixture, nuts, and vanilla.", "Spread about 1/2 of the batter in a greased 8 or 9-inch square pan.", "Add cheese mixture; spread evenly. Top with tablespoonfuls of remaining batter.", "Zigzag a spatula through to marble.", "Bake at 350\u00b0 for 35 to 40 minutes, or until top springs back when touched.", "Cool.", "Cut into bars."]
["chocolate", "butter", "baking powder", "salt", "flour", "nuts", "flour", "vanilla", "cream cheese", "sugar", "eggs"]