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Giant Peanut Butter Oatmeal Cookies aren't just giant, they are monstrous. Made with rolled oats and Reese's Pieces, these peanut butter cookies are a real treat.
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Giant Peanut Butter Oatmeal Cookies - Peanut Butter Cookies with Oats and Reese's Pieces

Giant Peanut Butter Oatmeal Cookies aren't just giant, they are monstrous. Made with rolled oats and Reese's Pieces, these peanut butter cookies are a real treat.
Prep Time10 minutes
Cook Time12 minutes
Total Time22 minutes
Course: Dessert
Cuisine: American
Keyword: chewy peanut butter oatmeal cookies, giant peanut butter oatmeal cookies, peanut butter cookies with oats and reese's pieces
Servings: 30 cookies
Calories: 293kcal
Author: Barbara

Ingredients

  • 1/2 cup softened butter
  • 1 cup white sugar
  • 1 cup brown sugar (plus 2 additional tablespoons)
  • 3 eggs
  • 2 cups peanut butter
  • 1/4 teaspoon vanilla extract
  • 3/4 teaspoon light corn syrup
  • 4 1/2 cups old fashioned oats
  • 2 teaspoons baking soda
  • 1/4 teaspoon salt
  • 1 cup candy coated peanut butter pieces (Reese's Pieces)
  • 1 cup chopped walnuts

Instructions

  • Preheat oven to 350 degrees F.
  • Cream softened butter; add white and brown sugars and cream well.
    Giant Peanut Butter Oatmeal Cookies aren't just giant, they are monstrous. Made with rolled oats and Reese's Pieces, these peanut butter cookies are a real treat.
  • Add eggs, peanut butter, vanilla extract and light corn syrup and beat well.
    Giant Peanut Butter Oatmeal Cookies aren't just giant, they are monstrous. Made with rolled oats and Reese's Pieces, these peanut butter cookies are a real treat.
  • Stir in oats, baking soda and salt first; and then stir in Reese's Pieces and chopped walnuts.
    Giant Peanut Butter Oatmeal Cookies aren't just giant, they are monstrous. Made with rolled oats and Reese's Pieces, these peanut butter cookies are a real treat.
  • Spoon dough, 1/4 cup at at time, approximately 4 inches apart on a cookie sheet. Press the dough into a 3 inch circle with your fingers.
    Giant Peanut Butter Oatmeal Cookies aren't just giant, they are monstrous. Made with rolled oats and Reese's Pieces, these peanut butter cookies are a real treat.
  • Bake 12 to 15 minutes. The centers of the cookies should be slightly soft.
    Giant Peanut Butter Oatmeal Cookies aren't just giant, they are monstrous. Made with rolled oats and Reese's Pieces, these peanut butter cookies are a real treat.
  • Cool slightly on the cookie sheets, and then remove to wire racks to cool completely.
    Giant Peanut Butter Oatmeal Cookies aren't just giant, they are monstrous. Made with rolled oats and Reese's Pieces, these peanut butter cookies are a real treat.

Notes

  • If needed, use margarine instead of butter. Just be sure to start with it softened to room temperature.
  • Candy such as M&Ms would be a great substitute for Reese's Pieces, if desired.
  • Omit chopped walnuts, if desired, or try swapping in chopped pecans instead.
  • The cookie batter will be stiff.
  • Use approximately 1/4 cup batter, or the amount that fits in a large cookie scoop or ice cream scoop.
  • Press the cookie batter into a 3-inch circle.
  • Leave plenty of room between the cookies on the cookie sheet; they will spread when baking.
  • Love peanut butter?  Try these amazing Peanut Butter Rice Krispies Cookies. 
  • Please note that the carb counts, calorie counts and nutritional information varies greatly depending on the products you use. The auto-calculation is an automated estimate and should NOT be used for specific dietary needs.

Nutrition

Calories: 293kcal | Carbohydrates: 30g | Protein: 7g | Fat: 17g | Saturated Fat: 5g | Polyunsaturated Fat: 5g | Monounsaturated Fat: 6g | Trans Fat: 0.1g | Cholesterol: 25mg | Sodium: 212mg | Potassium: 198mg | Fiber: 3g | Sugar: 19g | Vitamin A: 119IU | Vitamin C: 0.1mg | Calcium: 32mg | Iron: 1mg