Bananas Vanilla Wafers Put sugar, cornstarch, salt and 1- 0.75 cups of milk in heavy sauce pan. Cook until firm. Add egg yolks to remaining quarter cup of milk and mix well together. Add to hot mixture. Cook until eggs are done. Add vanilla. Pour over crumbled vanilla wafers and sliced bananas. Cover with whole cookies. Cool and serve. Note: You have to stir this all the time it is cooking. This can be doubled if you want.