2 lbs. confectioners' sugar
1 c. unsweetened cocoa
1/2 c. milk
1 c. butter
1 1/2 c. chopped nuts
2 tbsp. vanilla

In large bowl, mix sugar and cocoa. Add milk and butter. Do not stir. Heat 4 1/2 to 6 minutes on high until butter is melted. Add nuts and vanilla, stirring until smooth. Spread into well-greased square dish. Chill until firm.