Corn syrup keeps these soft cookies moist for several days.
Preheat oven to 375°F. Spray a large baking sheet with cooking spray.
Mix oats, brown sugar and raisins in a large bowl; add flour, salt, baking powder and cinnamon and mix well. Whisk together corn syrup, oil and eggs in a small bowl. Add to dry ingredients and mix well.
Drop dough by rounded tablespoons 2 inches apart on prepared baking sheet.
Bake 12 to 15 minutes until lightly browned around edges. Remove cookies to wire rack to cool.
Variation: Try substituting 1 cup chocolate chips for the raisins. Omit cinnamon and add 1/2 teaspoon vanilla extract to the corn syrup mixture.