Monster Skillet Cookie – Recipe Girl® – LaoudIt Recipe

Monster Skillet Cookie – Recipe Girl®

This Monster Skillet Cookie is a skillet of favorite monster cookie dough baked into a giant cookie!

monster frying pan cookie in an iron pan

Monster cookies are the best type of cookies. They incorporate peanut butter, so you will have a peanut butter cookie. And they also have oats, so you will get an oatmeal cookie as well. Chocolate chips are added to create a chocolate chip cookie. And the M & Ms’s are in this giant skillet cookie too, so it’s like you get a bit of everything!

displayed ingredients for the monster pan cookie

Ingredients needed:

  • creamy peanut butter
  • Butter
  • brown sugar
  • White sugar
  • eggs
  • Egg yolk
  • vanilla extract
  • Old fashioned oats
  • all purpose flour
  • baking soda and salt
  • chocolate chips
  • M & M’s

Notes on ingredients:

Crunchy peanut butter can be used. Regular oats can be used if you don’t have any on hand. All oats can be used instead of adding flour (2 1/2 cups total). Gluten free oats can be used to make this SG recipe. Use any flavor of chocolate chip or try the peanut butter chips too! Nice to add more M & M’s!

monster cookie dough in bowl

How to make a Monster Skillet cookie:

Scroll to the very end of this article to print the full instructions.

In a bowl, use a mixer to combine the peanut butter, butter, sugars, eggs, and vanilla extract. Then combine the oatmeal, flour, baking soda and salt and stir them into the wet mixture. The cookie dough will be thick! Stir in chocolate chips and M & M’s.

two photos showing a monster cookie dough in a black iron pan then a baked version

Butter a 10 or 12 inch cast iron skillet. Yes, you need a cast iron skillet to make this monster pan cookie. Spread cookie dough evenly in pan and bake.

Monster skillet cookie in black iron skillet with vanilla ice cream on top

You’ll end up with a giant skillet cookie ready to eat! These monster skillet cookies are great when served hot. And they’re even better when topped with vanilla ice cream.

frying pan cookie slice on paper plate

As tempting as it may sound, it is not meant to be pan-eaten with a giant spoon! Cut into quarters to serve. This will give you a good sized cookie. Why would you want to turn a cookie recipe into a giant skillet cookie? Well, you don’t have to worry about baking multiple batches of cookies. Everything is done in one fell swoop. And it’s a fun way to serve this monster cookie dessert. Enjoy!

If you like this recipe, you might like to try my Snickers Chocolate Chip Cookie or these No Bake Monster Cookie Bars.

Monster Skillet Cookie

Favorite monster cookies baked in a cast iron skillet!

Recipe details

Preparation time: 15 minutes

Cooking time: 30 minutes

Total time: 45 minutes

Classes: Dessert

Cooked: American

Keyword: monster cookies, pan cookies

Servings: 12 portions

Calories: 480kcal


  • 1 Chopped off creamy peanut butter
  • ½ cup (1 stick) Unsalted butter, at room temperature
  • 1 Chopped off lightly packed light brown sugar
  • ½ Chopped off granulated white sugar
  • 2 big eggs
  • 1 big Egg yolk
  • coffee spoons vanilla extract
  • cups old fashioned oatmeal
  • 1 Chopped off all purpose flour
  • ½ teaspoon baking soda
  • ½ teaspoon salt
  • ½ Chopped off semi-sweet chocolate chips
  • ½ Chopped off M & M’s candies


  • Preheat the oven to 350 degrees F. Liberally grease a 10 to 12 inch cast iron skillet with coconut oil or butter.

  • In a large bowl, use an electric mixer to cream the peanut butter and butter together. Stir in the brown sugar, granulated sugar, eggs, egg yolk and vanilla extract.

  • In a separate bowl, combine the oatmeal, flour, baking soda and salt. Stir into wet mixture. Stir in chocolate chips and M & M’s candies.

  • Transfer the dough to the prepared pan and spread it evenly. Sprinkle a few chocolate chips and M & M’s on top, if you like.

  • Bake in the oven until the cookie in the pan is golden brown, puffed and set along the outside, but shakes a little in the center when you shake the pan – 22 to 28 minutes. The pan cookie will take longer as it cools. Like brownies, be careful not to overcook.

  • Let cool slightly before cutting and serving. If desired, serve topped with vanilla ice cream.


Portion: 1slice, Calories: 480kcal, Carbohydrates: 55g, Protein: teng, Large: 26g, Saturated fat: 11g, Trans fat: 1g, Cholesterol: 69mg, Sodium: 267mg, Potassium: 271mg, Fiber: 3g, Sugar: 36g, Vitamin A: 335UI, Vitamin C: 1mg, Calcium: 55mg, The iron: 2mg

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