No-Bake Peanut Butter Oatmeal Bars Simply Bake May 05, 2020 197 Deliciously thick and chewy oatmeal bars that are no-bake, loaded with peanut butter, and only require 3 simple ingredients. These make the most easy breakfast bars! Get the recipe on Marsha's Baking Addiction! See the full directions on my site no-bake peanut butter oatmeal bars