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Christmas Monster Cookies Recipe

Monster cookies are a fun and festive treat that brings together the best of cookies, with the addition of colorful candy, oats, and peanut butter. For Christmas, we’ll give these delightful cookies a holiday twist by incorporating seasonal colors and flavors. Here’s a detailed guide to making your own Christmas Monster Cookies from scratch!


  1. Versatile: Perfect for holiday cookie swaps, gifting, or Christmas dessert tables.
  2. Festive Touch: Red and green candies and sprinkles add a festive charm.
  3. Simple Yet Indulgent: A straightforward recipe that yields chewy, rich, and delicious cookies.
  4. Customizable: Adjust the mix-ins to include your favorite holiday flavors.

Wet Ingredients:

1 cup (230g) unsalted butter, softened

1 cup (200g) granulated sugar

1 cup (220g) brown sugar, packed

1 ½ cups (380g) creamy peanut butter

3 large eggs

2 tsp vanilla extract

Dry Ingredients:

2 cups (250g) all-purpose flour

1 tsp baking soda

½ tsp salt

2 ½ cups (225g) old-fashioned oats

Mix-ins:

1 cup (180g) holiday-colored chocolate candies (red and green M&Ms or similar)

1 cup (170g) semi-sweet chocolate chips

½ cup (100g) white chocolate chips

½ cup (60g) crushed peppermint candies (optional)

¼ cup (40g) holiday sprinkles


Equipment

Large mixing bowls

Hand or stand mixer

Baking sheets

Parchment paper

Cooling rack


  1. Prepare Your Workspace
  2. Preheat your oven to 350°F (175°C).
  3. Line baking sheets with parchment paper or silicone mats.
  4. Measure all ingredients and set them aside.
  5. Mix the Wet Ingredients
  6. In a large mixing bowl, cream the softened butter, granulated sugar, and brown sugar until light and fluffy (about 2–3 minutes).
  7. Add peanut butter and mix until smooth.
  8. Beat in the eggs one at a time, followed by vanilla extract.
  9. Combine Dry Ingredients
  10. In another bowl, whisk together flour, baking soda, and salt.
  11. Gradually add the dry mixture to the wet ingredients, mixing until just combined.
  12. Add Oats and Mix-ins
  13. Stir in the oats with a spatula or mixer on low speed.
  14. Fold in chocolate candies, chocolate chips, white chocolate chips, and crushed peppermint candies. Reserve a few candies for topping.
  15. Shape the Cookies
  16. Using a medium cookie scoop or spoon, portion dough into 2-tablespoon-sized balls.
  17. Place dough balls 2 inches apart on prepared baking sheets.
  18. Gently press a few reserved candies and sprinkles onto the tops of each cookie.
  19. Bake
  20. Bake cookies in the preheated oven for 10–12 minutes or until edges are lightly golden.
  21. Remove from the oven and allow cookies to cool on the baking sheet for 5 minutes before transferring them to a wire rack to cool completely.
  22. Decorate (Optional)

Drizzle melted white chocolate over the cookies for an extra festive look.

Christmas Monster Cookies Recipe
Christmas Monster Cookies Recipe

Room Temperature: Store in an airtight container for up to 5 days.

Freezing the Dough: Roll dough into balls, freeze on a baking sheet, then transfer to a freezer bag for up to 3 months. Bake from frozen, adding an extra 2–3 minutes to the baking time.

Freezing Baked Cookies: Freeze in layers separated by parchment paper for up to 2 months.


  1. Don’t Overmix: Overmixing the dough can make the cookies dense.
  2. Chill the Dough (Optional): If your dough feels too soft, chill it for 30 minutes before baking.
  3. Customize Mix-ins: Swap or add ingredients like dried cranberries, chopped nuts, or mini marshmallows.
  4. Monitor Baking Time: Cookies may look underbaked when removed but will firm up as they cool.

Calories: 220

Fat: 12g

Carbs: 25g

Protein: 4g


  1. Peppermint Monster Cookies: Add ½ teaspoon peppermint extract to the dough and top with crushed candy canes.
  2. Gluten-Free Version: Replace the all-purpose flour with a gluten-free flour blend. Ensure oats are certified gluten-free.
  3. Nut-Free Option: Substitute sunflower seed butter for peanut butter and use nut-free candies.

Arrange these cookies on a Christmas dessert platter with hot cocoa.

Wrap in festive cellophane bags for a thoughtful holiday gift.

Serve alongside a scoop of vanilla ice cream for a decadent dessert.


Q: Can I use quick oats instead of old-fashioned oats?
A: Quick oats can be used but may result in a slightly different texture.

Q: Can I make these cookies smaller?
A: Yes, use a smaller cookie scoop and reduce the baking time by 1–2 minutes.

Q: Can I omit the peanut butter?
A: Peanut butter is essential for the signature flavor, but you can replace it with almond or sunflower seed butter.


These Christmas Monster Cookies are a delightful treat that combines nostalgia and festive cheer. With their chewy texture, bursts of chocolate, and colorful holiday toppings, they’re bound to become a favorite in your holiday baking repertoire. Whether you’re making them for family, friends, or yourself, they’re sure to spread joy with every bite.

Happy Baking and Merry Christmas!

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