National Oatmeal Cookie Day 2024. Inspired by this day, other days like oatmeal cookie day have been created to honor different types of cookies. Oatmeal cookie day gets mixed up a little with national lacy oatmeal cookie day,.

Preheat oven to 375 degrees and prepare cookie sheets by lining with parchment paper. National oatmeal cookie day is commemorated on april 30 of every year.