Chopped walnuts, optional In a medium saucepan, combine the flour and brown sugar,; stir in milk. Cook and stir over medium heat until thickened and bubbly; cook and stir 1 minute more. Removed from the heat. Gradually stir about 1 cup hot mixture into egg yolks. Return all to the saucepan. Bring to a gentle boil: cook and stir for 2 minutes. Remove from the heat; stir in butter, and vanilla. Cool to room tempeerature, stirring occasionally. Fold in the whipped cream. Layer a third of the pudding in 2 litre glass bowl; top with half of the bananas. Repeat layers. Top with remaining pudding. Sprinkle with nuts if desired. Cover and chill at leat 1 hour before serving. Yield: 8 servings.