These Soft and Chewy Monster Cookies are filled with peanut butter, chocolate chips, oatmeal AND M&Ms. Seriously… everything you could ever want in a cookie!
Because shmooshing these 3 delicious types of cookies together into one over the top cookie that’s full of texture and ginormous in size is clearly a good idea. Because in our Monster cookies we have:
- Peanut Butter
- Chocolate Chips
Ummmm….. Could you honestly go wrong???
Now, what you’ll especially love about these cookies is that their chewy, super soft, thick & full of texture. What makes them soft & chewy is the fact that we’re using melted better, adding a little cornstarch to the batter, and slightly under baking the cookies. Cornstarch is the perfect “secret” ingredient for chewy cookies, and under baking our cookies fights off dry cookie crumbs.
Then for the texture??? Old-fashioned rolled oats. In this recipe you definitely want to use old-fashioned or large flake oats for the best texture. Quick oats are too fine and will act pretty much just like flour. On the other hand, steel-cut oats are too hard and require a much longer cooking time. Therefore, they’l be hard in your cookies.
But old-fashioned oats are juuuuust right for the perfect level of texture & chew. Like Goldilocks & the 3 bears???
Now, as you’ll notice in the photos – these cookies are very large. I used my 3 tablespoon cookie scoop (and slightly overfilled it), to form super giant, bakery-sized cookies. But a 1/4 dry measuring cup works well too. After forming the cookie dough into balls, pop them in the fridge for at least 30 minutes. This keeps your cookies thick and extra chewy. No spreading, crispy cookies here.
So yes… Make these Soft & Chewy Monster Cookies. And be happy we have so many delicious flavors in our world that can all come together in one peanut butter, oatmeal, chocolate chip, M&M filled bite.
These ginormous Soft and Chewy Monster Cookies are filled with peanut butter, chocolate chips, oatmeal AND M&Ms. Packed with flavor and delicious chewy texture
- 1/3 cup unsalted butter , melted & cooled to room temperature
- 1/3 cup peanut butter , not natural or whipped
- 1 cup brown sugar , lightly packed (dark or light, I used light)
- 1 large egg
- 2 teaspoons vanilla extract
- 1 cup all-purpose flour , spooned & leveled
- 1 and 1/2 teaspoons cornstarch
- 1/2 teaspoon baking soda
- 1/4 teaspoon salt
- 1 cup old-fashioned oats
- 3/4 cup chocolate chips
- 3/4 cup M&Ms
In a large bowl using an electric mixer on medium speed, beat together the melted butter, peanut butter and brown sugar until no sugar lumps remain. Once no sugar lumps remain, then beat in the egg and vanilla until smooth.
With the mixer turned down to low, carefully beat in the flour, cornstarch, baking soda and salt. Then turn off the mixer and stir in the oats, chocolate chips and M&Ms using a large rubber spatula or wooden spoon.
Using a large cookie scoop or 1/4 cup dry measuring cup, for the cookie dough into balls about 3 tablespoons in size. Place them on a plate, cover with clingfilm, and chill the dough in your refrigerator for at least 30 minutes or overnight.
Once ready to bake, remove the cookie dough from the fridge and preheat the oven to 350F degrees. Line 2 cookie sheets with parchment paper or silicone baking mats, then place the cookies 2 inches apart on the sheets. Bake in the preheated oven for 9-11 minutes, or until the tops of the cookies look just set. Allow the cookies to cool on the tray for at least 5 minutes before transferring to a wire rack to continue cooling
Or if you’re into super gigantic, chewy, oatmeal filled cookies – these cookies are definitely for you!
If you love M&Ms and chocolate chips – these Boyfriend Cookies from Oh Sweet Basil are totally relationship worthy.