Brownies

4 squares unsweetened chocolate
1/2 cup butter
2 cups sugar
4 eggs
1 tsp. vanilla
1 cup flour
1/4 tsp. salt
1 cup chopped nuts

Melt chocolate and butter in large saucepan over low heat; remove from heat. Gradually add the sugar, stirring until well blended. Add eggs, one at a time, beating well after each. Stir in remaining ingredients, beating until mixture is smooth. Spread in greased baking pan and bake at 350 degrees for 30 to 40 minutes. Cool slightly and cut into bars.