Brownies
["4 sq. Baker's bitter chocolate", "1/4 lb. butter", "1/4 lb. margarine", "2 c. sugar", "4 eggs", "2 tsp. vanilla", "2 c. flour", "1 c. chopped nuts"]
["Melt chocolate, butter and margarine; cool thoroughly.", "Then add sugar, eggs and vanilla; stir lightly, but don't beat.", "Add flour and nuts.", "Bake in 9 x 13-inch greased and floured pan at 350\u00b0 for 20 minutes only.", "Sprinkle with powdered sugar while warm."]
["chocolate", "butter", "margarine", "sugar", "eggs", "vanilla", "flour", "nuts"]