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In a large mixing bowl, cream together butter, brown sugar, and sugar for 4 minutes or until light and fluffy.
Add peanut butter, egg, and vanilla and beat for 1 minute longer.
Fold in oats, flour, baking soda, and salt. Stir just until combined. Fold in chocolate chips and 3/4 cup of M&M's, reserving 1/4 cup for after baking.
Tightly wrap the dough and chill for 30 minutes.Once the dough has chilled, preheat oven to 365 degrees.
Scoop the dough onto a light colored baking sheet, spacing at least two inches apart.Bake for 9-10 minutes.
Remove from the oven and immediately lightly press the remaining 1/4 cup of M&M's into the tops of the cookies. Let cool for 5-10 minutes before removing.
Calories: 303kcal, Carbohydrates: 40g, Protein: 6g, Fat: 14g, Saturated Fat: 5g, Polyunsaturated Fat: 2g, Monounsaturated Fat: 4g, Trans Fat: 0.04g, Cholesterol: 15mg, Sodium: 128mg, Potassium: 127mg, Fiber: 2g, Sugar: 28g, Vitamin A: 65IU, Vitamin C: 0.1mg, Calcium: 44mg, Iron: 1mg
Nutrition information is automatically calculated, so should only be used as an approximation.
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