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4 Ingredient 15 Minute Classic Oatmeal Cookies

15 minute Oatmeal Cookies

4 from 1 vote
Prep Time 5 mins
Cook Time 10 mins
Total Time 15 mins


  • 1/2 cup butter
  • 1 cup packed light brown sugar
  • 2 cups quick cooking oats
  • 2 large egg whites


  • Preheat oven to 375 degrees and line two baking sheets with parchment paper.
  • In a large saucepan over medium heat, melt the butter.  Add the brown sugar and oats, stirring and cooking for about 2 minutes.  Remove from heat and allow to cool a bit.
  • With a KitchenAid or hand mixer, beat egg whites until stiff, but not dry.  Add to cooled saucepan with oats mixture and stir until combined.
  • Using a mini cookie (or ice cream) scoop, place cookies about 2 inches apart on baking sheet.  Do not flatten, they will flatten themselves in the oven.
  • Bake for 7-10 minutes or until edges are light brown.  Remove from oven and allow them to settle a bit before transfering to wire rack to cool completely (if you remove them too early, they might fall apart).