Indian Bars(Brownies)  
["1 c. butter or margarine", "2 sq. unsweetened chocolate", "2 c. sugar", "4 eggs, slightly beaten", "1 1/2 c. sifted flour", "1 tsp. baking powder", "2 tsp. vanilla", "1 c. pecans, chopped"]
["Melt butter and chocolate.", "Add sugar and eggs; mix thoroughly. Sift flour with baking powder.", "Stir into creamed mixture.", "Mix in vanilla and nuts.", "Bake in greased and floured 9 x 13-inch pan at 350\u00b0 for 25 to 30 minutes.", "Check after 20 minutes.", "Do not overcook!", "Should be slightly gooey in the middle."]
["butter", "unsweetened chocolate", "sugar", "eggs", "flour", "baking powder", "vanilla", "pecans"]