Monster Cookies (12 Cookies of Christmas S3.E4)
If you need a cookie that is soft, thick, chewy, peanut-buttery, chocolatey, and full of colorful M&Ms all at once… you’ve found it! These Monster Cookies are a classic, fun bake that kids and adults both love. They’re perfect for cookie swaps, holiday trays, lunchbox treats, or anytime you want something hearty and satisfying.
This recipe comes from Laurie and is cookie #4 in my 3rd Annual 12 Cookies of Christmas series!
📄 Get the printable recipe here:
👉 http://adventuresineverydaycooking.com/recipes/monster-cookies/
Why You’ll Love These Monster Cookies
- Thick, soft, chewy texture
- Packed with peanut butter, chocolate chips, and M&Ms
- No chilling required
- Fun, colorful, and kid-friendly
- Perfect balance of salty + sweet
- Easy enough for beginner bakers
Monster Cookies
(Laurie)
Ingredients:
- 1/2 cup butter (115 g)
- 1/2 cup granulated sugar (100 g)
- 1/2 cup light brown sugar (110 g)
- 1/2 cup peanut butter (130 g)
- 1 egg
- 1 teaspoon vanilla extract (5 ml)
- 1 cup all-purpose flour (120 g)
- 1 1/4 cups old-fashioned rolled oats (112 g)
- 1/4 teaspoon salt (1.5 g)
- 1/2 teaspoon baking powder (2 g)
- 1/2 teaspoon baking soda (2.5 g)
- 3/4 cup M&M candies (130 g)
- 1/2 cup semi-sweet chocolate chips (90 g)
Directions
- Cream the butter and sugar together really well—at least 2-3 minutes until light and fluffy.
- Add peanut butter and mix well. Add egg and vanilla and mix.
- In a separate mixing bowl stir together the flour (be careful to measure correctly, spooning the flour into a measuring cup, then leveling off), oats, salt, baking powder and baking soda.
- Add to the wet mixture and mix to combine. Stir in chocolate chips and M&M’s.
- Bake at 350 degrees for 10-12 minutes, or a little longer if you make them bigger than a 1 inch cookie scoop. Don’t over bake–they will look just set.
- Remove them from the oven and allow them to cool completely on the pan.
🎄 Tips for Perfect Monster Cookies
- Use old-fashioned oats for the best chewy texture.
- Don’t overbake — they’ll firm up as they cool.
- Add more M&Ms on top before baking for a prettier finish.
- Try holiday M&Ms for a Christmas version!
❄️ Storage
- Room temp: 4–5 days
- Freezer: up to 3 months (dough balls or baked cookies)
✨ Final Thoughts
These Monster Cookies are a joyful, colorful, crowd-pleasing treat that always disappears quickly. They’re fabulous for gifting, baking with kids, and filling your holiday cookie tray. Enjoy them as part of my 12 Cookies of Christmas series — and happy baking!
Printable Recipe Card