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The Fastest Easiest Oatmeal Cookies Recipe - Quick 20 Minute Treats

These lightning-fast oatmeal cookies deliver delicious results in record time with just one bowl and no chilling required. Perfect for busy weeknights, the recipe uses basic pantry staples to create perfectly chewy cookies with classic oatmeal texture in under 20 minutes.
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Prep Time 10 minutes
Cook Time 12 minutes
Total Time 27 minutes
Calories: 120
Ingredients Method Notes

Ingredients
  

Ingredients
  • 1 cup all-purpose flour
  • 1 teaspoon baking soda
  • ½ teaspoon salt
  • ½ cup unsalted butter, softened
  • ½ cup granulated sugar
  • ½ cup brown sugar, packed
  • 1 large egg
  • 1 teaspoon vanilla extract
  • 1 ½ cups old-fashioned oats
  • ½ cup raisins or chocolate chips (optional)

Method
 

Instructions
  1. Preheat your oven to 350°F (175°C) and line two baking sheets with parchment paper.
  2. In a large mixing bowl, cream together the softened butter, granulated sugar, and brown sugar until light and fluffy. This should take about 2-3 minutes with a hand mixer or stand mixer.
  3. Beat in the egg and vanilla extract until well combined. The mixture should be smooth and creamy.
  4. In a separate small bowl, whisk together the flour, baking soda, and salt. Gradually add this dry mixture to the wet ingredients, mixing just until combined.
  5. Stir in the oats and any optional add-ins like raisins or chocolate chips. The dough will be thick but should come together easily.
  6. Drop rounded tablespoons of dough onto the prepared baking sheets, spacing them about 2 inches apart. You can gently flatten each cookie slightly with the back of a spoon.
  7. Bake for 10-12 minutes, or until the edges are golden brown but the centers still look slightly soft. The cookies will continue to set as they cool.
  8. Let the cookies cool on the baking sheet for 5 minutes before transferring them to a wire rack to cool completely.

Notes

Don't overmix once flour is added. Use room temperature ingredients for best texture. For chewier cookies, bake for minimum time. Cookies freeze beautifully for up to 3 months.