Simple Classic Chocolate Chip Oatmeal Cookies
These Thick & Chewy Oatmeal Chocolate Chip Cookies are a masterclass in texture and balance. The oats provide a hearty, wholesome chew, while the deep flavor of brown sugar and cinnamon complements the pools of melted semisweet chocolate.
Ingredients
Dry ingredients
- 1 ½ cups all‑purpose flour spooned and leveled.
- 1 teaspoon baking soda.
- ½ teaspoon baking powder for a little extra lift.
- 1 teaspoon fine salt or ¾ teaspoon table salt.
- 1 teaspoon ground cinnamon optional but highly recommended.
- 2 cups old‑fashioned rolled oats not instant.
Wet ingredients
- 1 cup 2 sticks unsalted butter, softened to room temperature.
- 1 cup packed light brown sugar.
- ½ cup granulated sugar.
- 2 large eggs room temperature.
- 2 teaspoons pure vanilla extract.
Mix‑ins
- 1 ½ to 2 cups semisweet chocolate chips use the full 2 cups for extra chocolatey cookies.
- Optional: ½ cup chopped walnuts or pecans can be added for crunch if desired.
Instructions
Preheat and prepare pans
- The oven is preheated to 350°F (177°C).
- Two baking sheets are lined with parchment paper or silicone baking mats so sticking is avoided and cleanup is easy.
Whisk dry ingredients
- In a medium bowl, the flour, baking soda, baking powder, salt, and cinnamon are whisked together until well combined.
- The oats are kept separate for now so they can be folded in gently at the end for better texture.
Cream butter and sugars
- In a large bowl, softened butter, brown sugar, and granulated sugar are beaten together with a mixer on medium speed until the mixture looks light, creamy, and slightly fluffy, about 2 minutes.
- This step is allowed to take its time, because proper creaming traps air and helps the cookies bake up thick and chewy instead of flat.
Add eggs and vanilla
- The eggs are added one at a time, mixing well after each addition, until the mixture looks smooth and glossy.
- Vanilla extract is then mixed in, which rounds out the flavor and gives the dough that classic cookie smell.
Combine wet and dry
- The dry flour mixture is added to the butter mixture in two additions on low speed so flour doesn’t fly everywhere and gluten isn’t over‑developed.
- Mixing is stopped as soon as no streaks of dry flour remain; at this point the dough will look thick and slightly sticky.
Fold in oats and chocolate chips
- The oats and chocolate chips are added and stirred in by hand with a spatula or wooden spoon until they are evenly distributed.
- Over‑mixing is avoided here so the oats keep some of their texture and the cookies stay tender.
Chill the dough (highly recommended)
- The bowl is covered and the dough is chilled for at least 1 hour and up to 24 hours in the refrigerator.
- This rest time allows the flour and oats to hydrate and the butter to firm up, which helps the cookies bake thicker and with richer flavor.
Scoop and bake
- The chilled dough is scooped into 2‑tablespoon portions (a medium cookie scoop works perfectly) and dropped onto the prepared baking sheets, leaving about 2 to 3 inches between cookies.
- The cookies are baked for 11 to 13 minutes, until the edges are lightly golden and the centers still look just a bit soft and slightly underdone; they will finish setting on the pan.
Cool for best texture
- The cookies are left on the baking sheet for 3 to 5 minutes so the structure can set.
- Then they are transferred to a wire rack to cool completely; as they cool, the edges stay pleasantly crisp while the centers settle into a chewy, soft bite.