Crisp and chewy at the same time, the best Monster Cookie recipes are loaded with all of my favorite great cookie flavors. Oats, peanut butter, chocolate chips, and even a drop of maple syrup all combine to make my grandmother’s Monster Cookies.
Does anyone not have a beloved monster cookie recipe from their grandmother? And doesn’t everyone think their recipe is the best?
My friend Augusta and I compared our grandmother’s recipes years ago and laughed when they were almost identical.
Side note: We then proceeded to make and eat almost an entire batch on our own, we probably consumed half of it as raw cookie dough – yeah, these cookies are that good.
I thought these cookies were exclusive to my own family and in the past few years, I’ve seen these all over the internet.
If you haven’t tasted them before, you are missing out on one of the best cookies ever.
I only make these cookies a few times a year, because I absolutely cannot eat just one (or two or three). I’ve been known to polish off so many I went to bed nauseous. (How’s that for a selling point? ha)
My brother Karl shares my weakness for these cookies and that’s motivation for me to make these every summer when he visits. And for a major treat? You’re going to want to make these Monster Cookie Ice Cream Sandwiches.
Monster Cookies stay beautifully chewy when frozen. They’re the PERFECT cookie for ice cream sandwich making. (I just skip the candies on top if I know I’ll be making ice cream sandwiches.)
Gluten Free without any special ingredients, these cookies were free of wheat before that was the cool thing to be. The oats and the peanut butter hold them together perfectly. (If you are baking them with allergies in mind, be sure to purchase certified gluten-free oats.)
Do you love Monster Cookies as much as we do? You’ll want to try these Monster Cookie Bars, Monster Cookie Dough Bites, and these Monster Cookie Chocolate Cheesecake Bars! Better yet, turn them into cookie dough bites for Monster Cookie Dough Ice Cream.
Check out all of the Gluten Free Dessert Recipes on this website!
Best Monster Cookie Recipe
First, and most importantly, do not overbake these amazing cookies. The cookies should be barely browned around the edges and just past looking wet on top when you remove them from the oven.
Let them cool on the baking sheets for a couple minutes and then transfer to a wire rack to finish cooling.
These cookies are wonderfully chewy and they’ll stay nice for several days when stored at room temperature in an airtight container. They can also be frozen for up to 3 months.
For what it’s worth, Grandma’s Monster Cookies are Oscar approved – not that I let him taste them. But he did give them a dignified nod of approval as he helped me take the photos.
How To Make Monster Cookies
- Preheat oven to 350 degrees. Cream together the butter and sugars.
- Add the eggs, vanilla, syrup and baking soda. Mix to combine.
- Add the peanut butter and then the oats. Stir well to combine.
- Add the chocolate chips, mixing them in thoroughly.
- Scoop generous cookie mounds onto cookie sheets and then top with m&ms.
- Bake for approximately 12 minutes, watching carefully to make sure they do not overbake.
- Cool on sheet for 1-2 minutes and then remove to wire rack.
{originally published 5/30/12 – recipe notes and photos updated 1/22/20}
For more great recipes from Grandma, check out these Ice Cream Kolacky Cookies and this Old Fashioned Chocolate Meringue Pie!
Hollie says
Second batch this week! I used creamy peanut butter and they turned out amazing! So glad I found this recipe! Thanks!!
Mary Younkin says
I’m so glad that you’re enjoying the cookies, Hollie!
Paige says
Perfect recipe, great taste and good ratios. Make sure to let the cookies sit for about 10 minutes after you take them out otherwise they will fall apart, 12 minutes is the perfect amount of time to bake them for.
Mary Younkin says
I’m glad you like the cookies, Paige!
Jodi says
Hello. Do I use salted or unsalted butter? Thank you.
Mary Younkin says
Hi Jodi! I use salted butter in all of my recipes.
Lauren Costa says
Delicious! These were a big hit with all members of my family.
Mary Younkin says
I’m happy you like them, Lauren!
Gigi Kushman says
These are SO amazing!!! My husband requests a batch every 10 days🤣
Mary Younkin says
Awe! I love this. I could happily eat a batch every 10 days too.