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Ann Romney's Oatmeal M&M Cookies

Ann Romney's M&M Cookies aka Monster Cookies

Ann Romney’s M&M Cookies are also widely known as Monster Cookies
Course Cookie
Cuisine American
Keyword Ann Romney, Cookies
Prep Time 10 minutes
Cook Time 15 minutes
Servings 18
Author Anna
Cost 5


  • 1 cup granulated sugar 200 grams
  • 1 cup packed light brown sugar 200 grams
  • 1/2 cup butter, softened (salted) 114 grams
  • 1 1/2 cups crunchy peanut butter
  • 1 tablespoon light corn syrup such as Karo
  • 3 eggs
  • 1/2 teaspoon vanilla extract
  • 4 1/2 cups old-fashioned rolled oats
  • 2 teaspoons baking soda
  • 1 cup dark chocolate chips
  • 2/3 cup M&M's candies


  • Preheat oven to 325 degrees F. Line two baking sheets with nonstick foil or parchment paper.
  • In a large bowl, using an electric mixer, beat sugars, butter, peanut butter and corn syrup on high speed until creamy. Beat in eggs 1 at a time. Beat in vanilla extract.
  • In a separate bowl, mix together oats and baking soda. Stir into peanut butter mixture until combined. Mix in chocolate chips and M&M's.
  • Using about a 1/4 cup measure, drop dough onto baking sheets spacing at least 3 inches apart. Alternatively, you can shape the dough mounds, put on a plate, then cover and chill. This way you can bake when needed.
  • Bake at 325 degrees F for 18 minutes or until lightly browned. Cool 2 minutes, then transfer cookies to a wire rack to cool completely.