National Oatmeal Day is celebrated every October 29, primarily in the United States. This food-related holiday honors oatmeal, a popular breakfast cereal known for its health benefits, including lowering blood cholesterol and stabilizing blood-glucose levels due to its high soluble fiber and complex carbohydrate content. Oatmeal porridge, commonly made from rolled or steel-cut oats with water or milk, is a traditional breakfast in countries such as the United Kingdom, Finland, Denmark, Norway, and Sweden. It can be enhanced with ingredients like nuts, raisins, nutmeg, and cinnamon, and is often served with butter, cream, maple syrup, or jam. To celebrate, people are encouraged to make oatmeal raisin cookies, using a recipe that includes flour, rolled oats, raisins, sugars, shortening, eggs, baking soda, vanilla extract, and salt. National Oatmeal Day serves as a reminder of the versatility and nutritional value of oatmeal in various culinary traditions.