Fudge Brownies
["4 (4 oz.) sq. unsweetened chocolate", "2/3 c. oil", "2 c. sugar", "4 eggs", "1 1/2 c. sifted flour", "1 tsp. baking powder", "1 tsp. salt", "1 c. nuts, broken"]
["Preheat oven to 350\u00b0. Generously grease a 9 x 13 x 2-inch pan."]
["unsweetened chocolate", "oil", "sugar", "eggs", "flour", "baking powder", "salt", "nuts"]