Preheat oven to 325 degrees. Grease 8 or 23 cm pan. Melt butter. Combine co coa and sugar. Add melted butter. Add eggs and vanilla, stir. Add flour and salt; mix, but DO NOT OVERMIX. Add walnuts. Pour into prepared pan. Bake unti l brownies begin to pull away from sides or toothpick comes out clean 40 50 m inutes. Cool before cutting into squares.

from "Kids Cooking" busted by sooz