In medium saucepan, combine brown sugar, milk and eggs; mix well. Cook over medium heat for about 12 minutes or until mixture is slightly thickened and coats a metal spoon, stirring constantly. DO NOT BOIL. Cool 30 minutes.*
Add whipping cream and maple flavor; blend well. Stir in nuts. Refrigerate until ready to freeze.
When ready to freeze, freeze mixture in ice cream maker according to manufacturer´s directions.