Chewy Oatmeal M&M Cookies

(from Thentheresjess’s recipe box)

Source: Sally's Baking Addiction (from RecipeThing user librarygal)

Prep time: 30 minutes
Cook time: 11 minutes
Serves 6 people

Categories: cookies, dessert


  • 1/2 cup butter, softened to room temp
  • 3/4 cup brown sugar
  • 1/2 cup sugar
  • 1 egg
  • 2 tsp vanilla
  • 1/2 tsp baking soda
  • 1.5 cups whole rolled oats
  • 1 cup all purpose flour
  • 3/4 cup mini m&ms


  1. In a large bowl, beat the softened butter and sugars until smooth and creamy. Add the egg and vanilla and mix well.

  2. Slowly stir in the baking soda, oats, and flour. Mix together until just combined. Do not overmix. Fold in the mini m&ms.

  3. Chill the dough for at least one hour in the fridge. (cookies will be very flat if the dough is not very cold)

  4. Preheat oven to 325 degrees.

  5. Roll and drop dough by tablespoonfuls onto ungreased baking sheet or silpat. Bake for 11 minutes and let cool on baking sheet for a minute or two before transferring to a wire rack.

    • The cookies will be very soft and may appear undone after only 11 minutes in the oven, but they will firm up.
    • Make sure to keep the unused dough in the fridge as each batch is baking. The dough MUST be cold.

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