Easy Brownies
["2 sticks butter or margarine, melted", "3/4 c. cocoa", "2 c. sugar", "4 eggs", "1 1/2 c. flour", "1/2 tsp. salt", "1/2 tsp. baking soda", "2 tsp. vanilla", "1/2 c. nuts, chopped"]
["Measure and sift dry ingredients into bowl.", "Add melted butter, eggs and vanilla; beat until smooth.", "Fold in nuts.", "Pour into greased and floured 10 1/2 x 15 1/2-inch pan and bake for 20 minutes in 350\u00b0 oven.", "Cool 5 minutes and frost."]
["butter", "cocoa", "sugar", "eggs", "flour", "salt", "baking soda", "vanilla", "nuts"]