Chewy Brown Sugar Oatmeal Cookies
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Chewy Brown Sugar Oatmeal Cookies

From the MyKitchenBank Kitchen

Thick, chewy oatmeal cookies with crisp golden edges, soft centers and a warm cinnamon-vanilla flavor. Chilling the dough keeps them from spreading too thin, and a short rest after baking sets the centers.

Prep
20 min
Cook
24 min
Wait
1 hr 45 min
Total
2 hr 29 min
Makes
24 cookies (about 3 inches / 7.5 cm wide)

Steps

Before you start
  • Take the butter and eggs out 1 hour ahead so they reach room temperature (butter should dent easily but not be greasy).
  • Plan for at least 1 hour of dough chilling before baking.
  • Use old-fashioned rolled oats, not quick oats or steel-cut oats, for the best chew.
  • Line baking sheets with parchment paper.
  1. Prep the pans

    • Line two rimmed baking sheets with parchment paper.
    • Make sure the butter and eggs are at room temperature.
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    Ready when: Pans are lined and ingredients are measured.

    Tip: Measure flour by spooning it into the cup and leveling; scooping packs in too much and makes dry cookies.

  2. Whisk dry ingredients

    • In a medium bowl, whisk together the flour, baking soda, cinnamon and salt until the cinnamon is evenly distributed with no streaks.
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    Ready when: Mixture is a uniform beige color.

  3. Cream butter and sugars

    • In a large bowl, beat the butter, brown sugar and granulated sugar with a mixer on medium speed for 3 minutes, scraping the bowl once, until the mixture is pale, fluffy and looks like wet sand turned creamy.
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    Ready when: Mixture is lighter in color and visibly fluffy.

    Tip: Do not melt the butter; softened butter gives structure and prevents greasy spread.

  4. Add eggs and vanilla

    • Beat in the eggs one at a time, mixing about 30 seconds after each, then add the vanilla.
    • Scrape the bowl and mix 10 seconds more.
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    Ready when: Batter is smooth and glossy with no streaks of egg.

  5. Mix in flour and oats

    • Add the dry ingredients and mix on low speed just until a few floury streaks remain.
    • Add the oats (and raisins, chocolate chips or nuts, if using) and mix on low or fold with a spatula until evenly combined.
    • The dough will be thick and sticky.
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    Ready when: No dry flour pockets remain and oats are evenly coated.

    Tip: Overmixing after adding flour makes cookies tough.

  6. Chill the dough

    • Cover the bowl and refrigerate for at least 1 hour and up to 48 hours.
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    Ready when: Dough is firm and scoopable, not sticky.

    Tip: Skipping the chill gives flatter, crispier cookies.

  7. Preheat the ovenOven 350°F / 175°C

    • About 15 minutes before baking, position racks in the upper and lower thirds of the oven and heat to 350°F (175°C).
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    Ready when: Oven reaches 350°F (175°C).

    Tip: An oven thermometer helps if your oven runs hot or cool.

  8. Scoop the cookies

    • Scoop heaping 2-tablespoon portions (about 45 g each) onto the prepared sheets, spacing them 2 inches (5 cm) apart, about 12 per sheet.
    • Gently press each mound down slightly with your palm.
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    Ready when: Twelve evenly sized mounds per sheet.

    Tip: If baking in batches, keep the remaining dough in the fridge and use cooled pans.

  9. Bake the cookiesOven 350°F / 175°C

    • Bake at 350°F (175°C) for 11 to 13 minutes, switching and rotating the pans halfway through.
    • Bake until the edges are golden brown and the centers look set but still slightly soft and puffy.
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    Ready when: Edges golden brown, centers set but slightly soft.

    Tip: Pull them when centers still look a touch underdone; they continue to cook on the hot pan.

  10. Cool and set

    • Let the cookies rest on the baking sheet for 5 minutes, then transfer with a spatula to a wire rack to cool completely, about 15 minutes more.
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    Ready when: Cookies lift off cleanly and feel firm underneath.

Good to know

Tips
  • Weigh ingredients with a kitchen scale for the most consistent results.
  • For extra chew, bang the baking sheet on the counter once right after removing it from the oven to deflate the cookies slightly.
  • Bake one test cookie first; if it spreads too much, chill the dough 30 more minutes.
  • Toast the oats on a dry sheet at 350°F (175°C) for 8 minutes and cool for a nuttier flavor.
Make ahead

"Dough can be refrigerated up to 48 hours, or scooped into balls and frozen up to 3 months; bake frozen balls straight from the freezer, adding 1 to 2 minutes."

Storage & reheating

"Room temperature in an airtight container up to 5 days. Freeze baked cookies up to 3 months; thaw at room temperature for 30 minutes, or warm at 300°F (150°C) for 5 minutes to refresh."

Substitutions
  • unsalted butter → salted butter. Reduce the fine salt to ¼ teaspoon.
  • old-fashioned rolled oats → quick-cooking oats. Cookies will be softer and less chewy; texture is less hearty.
  • light or dark brown sugar → coconut sugar. Use the same amount; cookies will be slightly drier and less caramel-like.
  • all-purpose flour → 1:1 gluten-free baking flour. Use oats labeled gluten-free; dough may be slightly stickier.

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