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Giant Reese's stuffed monster cookies are the most delicious & indulgent dessert! Cookies bigger than your hand that are loaded with oats, peanut butter, chocolate chips, mini m&m's. The best part is the Reese's peanut butter cup stuffed inside.
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Giant Reese's Stuffed Monster Cookies

Giant Reese's stuffed monster cookies are the most delicious & indulgent dessert! Cookies bigger than your hand that are loaded with oats, peanut butter, chocolate chips, mini m&m's. The best part is the Reese's peanut butter cup stuffed inside the thick , soft baked & chewy monster cookie.
Course Dessert
Cuisine American
Keyword cookies, dessert, monster cookies
Prep Time 10 minutes
Cook Time 14 minutes
Total Time 24 minutes
Servings 8 giant cookies
Author Jessica - Together as Family

Ingredients

  • 1/2 cup (1 stick) butter, softened
  • 1/2 cup creamy peanut butter
  • 1 cup brown sugar
  • 1 large egg
  • 2 teaspoons vanilla extract
  • 3/4 cup all-purpose flour
  • 1 teaspoon baking soda
  • 1 1/2 teaspoon cornstarch
  • 1/4 teaspoon baking powder
  • 1/4 teaspoon salt
  • 1 1/2 cup quick oats
  • 1 cup mini chocolate chips
  • 1 cup mini m&m's
  • 8 snack-size Reese's peanut butter cups

Instructions

  • Unwrap Reese's and place them in the freezer while you prepare the dough.
  • Heat oven to 350 degrees and prepare a cookie sheet with parchment paper or spray with cooking spray.
  • In a large bowl (or bowl of a stand mixer) cream together the butter, peanut butter, and brown sugar until light and fluffy, about 3-4 minutes. Mix in the egg and vanilla, scraping down the sides of the bowl as needed.
  • In a separate bowl, add the flour, baking soda, cornstarch, baking powder, and salt and whisk to combine. Add the flour mixture to the wet ingredients and mix until just combined.
  • Add the oats, chocolate chips, and M&M candies. Mix on low speed just until dough is combined.
  • Using a 1/2 cup measuring cup, scoop a dough ball and place it in your hand. Flatten slightly and press a Reese's peanut butter cup in the middle. Fold up the sides of the cookie dough ball and roll into a ball. Place 4 cookie dough balls onto a cookie sheet.
  • Shape each cookie dough ball into a "cookie shape". Press down the top slightly and shape the sides. The cookies won't spread much while baking so you want to shape then into a cookie shape so they won't bake into rounded balls.
  • Bake the cookies for 12-14 minutes or until the edges are just starting to brown and the top still looks slightly undercooked. Remove from the oven and cool for 5 minutes on the baking sheet before moving them to a wire rack to cool completely.

Notes

If making smaller cookies then use the miniature Reese's peanut butter cups instead. Reduce cooking time by a few minutes. 
 
I find the snack size Reese's in a 12-pack in the candy aisle of the store.
 
For a pretty presentation, press a few additional mini m&m's onto the tops of the cookie dough balls after you shape them.