Oatmeal Jumble Bars Oatmeal Jumble Bars are made with Rhubarb Cranberry Apricot Fruit Pie Filling A delicious mixture of rhubarb, cranberries and apricots. If you would rather not make this yummy filling, even though you really should:), you can easily substitute any fruit filling of your choice. You can certainly use just a plain rhubarb filling or