This is the best oatmeal cookie recipe ever. They are buttery and perfectly sweet with crispy edges & soft and chewy centers. They're easy to make - no chilling necessary.
Preheat oven to 375 degrees Fahrenheit (190 degrees Celsius).
Line two large baking sheets with silicone baking mats or parchment paper. Set aside.
Combine the flour, baking soda, baking powder, salt and cinnamon in a small bowl. Set aside.
Put softened butter, granulated sugar and brown sugar in the bowl of a standing mixer and beat for 1 minute, or until light and fluffy.
Add egg and vanilla and beat on medium-high speed for 1 minute.
Add the dry ingredient mixture and beat on medium speed until combined.
Then, beat in the oatmeal on low speed.
If desired, beat in mix ins until evenly distributed in the dough.
Use a 1 ½ to 2 Tablespoon cookie scoop to measure out portions of dough.
Roll the dough into balls and place evenly spaced on the prepared cookie sheet - about 1 ½ inches apart.
Gently press down the tops of the oatmeal cookies until they are slightly flattened.
Bake in preheated oven for 8-10 minutes until the top is just set and the edges are lightly browned.
Let the oatmeal cookies sit on the baking pan for 5 minutes before transferring to a wire rack to cool.
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Notes
Ingredient SubstitutionsNote, this recipe is best when made as written, but here are some common substitutions that work well for the ingredients listed in bold:
Store/Freeze Baked CookiesStore oatmeal cookies in an airtight container at room temperature for 3-5 days, or in the freezer for up to 2 months. Thaw at room temperature or by gently warming in the microwave or oven.Freeze the DoughRoll the dough into balls, place in an airtight container (or bag) and freeze for up to 1 month. To bake: remove dough from the freezer and let it thaw at room temperature. Then bake according to the recipe instructions.