Making your favorite cookie in a GIANT version just seems like the right thing to do. 😉 We are a huge fan of Monster Cookies and absolutely can’t get enough of this extra big version! Hope you love Giant Monster Cookies as much as we do! Be sure to check out even more of my Cookie Recipes!
Monster Cookies
Why do we call these monster cookies? Well, I have a few ideas.
- At least as far as this recipe goes, these giant monster cookies are monstrous in size! Each cookie uses 1/2 cup of monster cookie batter and bakes into a cookie that is bigger than your palm.
- Since monster cookies are essentially a cross between two of America’s favorite cookies – the oatmeal cookie and the peanut butter cookie – if you spot someone eating one, your green-eyed jealousy monster is likely to say hi!
- This cookie recipe is so easy that even a monster could make them! And, while it does make it a little bit easier to make them in a stand mixer, you definitely don’t need to own one to make this monster cookie recipe!
- The M&Ms make them look a little bit like monsters. If monsters looked like cookies, that is.
Monster Cookie Tips & Tricks
When making these giant monster cookies, here a few tips you may find:
- Toast the oats! Toasting the oats brings out their flavor a little bit more against the peanut butter. If you don’t like the flavor of oats, but just prefer their texture, don’t toast them.
- Let the batter sit for an hour at room temperature. You don’t have to do this, but letting the batter sit, you hydrate the oats, which I found resulted in a better texture when baked.
- When you remove these from the oven, you may notice the giant monster cookies won’t look totally baked. They’ll continue baking a little on the cookie sheet. It is important not to overbake these cookies!
- This one is optional but add a little spice. I added 1/2 teaspoon of cinnamon to add a bit more complexity to the flavor of the final cookie.
Can I Make the Cookies Smaller?
You can! The giant monster cookies use a 1/2 cup of batter per cookie, but you can size them down to 1/4 cup or 2 Tablespoons for smaller monsters. You will have to reduce the cooking time.
Monster Cookie Variations
It’s easy to make a few tweaks to the recipe to satisfy your craving. Swap the chocolate chips for peanut butter chips for even more peanut butter flavor. Or, customize the M&Ms for the holiday! Red and Green for Christmas; pink, red, and white for Valentine’s Day; or pastels for Easter. I like to add more M&Ms on top to make them even super decorative.
Can I Make these Cookies Gluten-Free?
I believe they can, but I haven’t yet tested it. If you use gluten-free oats and substitute the flour for 1:1 flour, the recipe should work. This will change the texture slightly.
Giant Monster Cookies
Ingredients
- 2 cups (300 g) oats, preferably not quick oats
- ¼ teaspoon baking powder
- 1 teaspoon baking soda
- 1 cup (128 g) all-purpose flour
- ¼ teaspoon kosher salt
- ½ teaspoon ground cinnamon, optional
- ½ cup (1 stick / 113 g) unsalted butter, softened
- ¼ cup (57 g) granulated sugar
- ¾ cup (150 g) brown sugar, packed
- 1 cup (226 g) creamy peanut butter
- 2 teaspoons vanilla extract
- 2 large eggs, room temperature
- 1 cup M&Ms, divided (mini M&M's work great as garnish as well)
- ½ cup chocolate chips
Instructions
Toasting the Oats (Optional)
- Preheat oven to 350°F.
- Place oats on baking sheet and toast for 12 minutes, rotating pan halfway through. Remove and let cool on cooling rack.
Monster Cookie
- Combine oats, baking powder, baking soda, flour, salt, and cinnamon in medium bowl. Set aside.
- Combine butter, sugar, brown sugar, and peanut butter in bowl of mixer until fully mixed, about three minutes at medium speed.
- Add eggs, one at a time, mixing for 30 seconds after each addition.
- Add vanilla extract.
- Reduce mixer speed and add oat mixture. Mix just until combined.
- Add ½ cup M&Ms and ½ cup chocolate chips.
- Cover bowl with plastic wrap and let rest at room temperature for one hour.
- Preheat oven to 350°F. Line a baking sheet with parchment paper.
- Use ½ cup measuring cup to portion cookies and place on the lined baking sheet. Cover individual cookies with remaining M&M's.
- Bake for 16-20 minutes or until edges are slightly golden brown. Remove from oven and let cool.
Did you make this recipe?
Thank you for making my recipe! You took pictures, right? Well go ahead and post them on Instagram! Be sure to mention me @iambaker and use the hashtag #YouAreBaker.
Photos, some copy, and recipe are from Rebecca Swanner of Let’s Eat Cake!
Yes thanks
Please, can anyone tell me if this is a nice, chewy cookie before I make them? I don’t want to waste time making them if they’re the kind that snap off in your mouth! Thanks.
They are very moist and chewy! You won’t be disappointed!
We love Monster Cookies! I first heard about them 30 years ago or so and the recipe was for a very large batch… a whole pound of butter, whole jar of peanut butter, whole package of M & M’s etc. I was told that was one of reasons they were called “Monster” Cookies – a monster batch! We would make them when we needed a lot of cookies, or bake half and freeze half for later. I like your ideas too though! 🙂
Can I make without peanut butter? My monster is allergic!
is there a substitute for peanut butter that won’t alter the consistency?
I have not tried others but you may be able to use almond butter
what is yield with 1/2 cup portions
Hi I’d like to make gluten free monster cookies you talked about a 1:1 ratio but of what
Is this crunchy or chewy cookies?
Crunchy
Just made these !! Look yummy and were easy too !
I wouldn’t be surprised if this is execution error on my part as I’m a super novice cookie baker, but my dough came out SUPER crumbly and was hard to get the cookies to stay together. They didn’t spread at all and seemed very heavy on the oats. I plan to try out a bunch of cookie recipes this fall and winter for the holiday season so perhaps I’ll come back to this when I know what I’m doing better!