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I pulled out my recipe binder last week and spent some time updating it. I had quite a few recipes I’d torn out of Southern Living and Taste of Home magazines that needed to be organized into the pages.
In the process, I came across a hand-written recipe card for my mom’s Monster Cookies – the recipe she made in the late 90’s when I was in high school. I instantly felt myself craving a taste, so I added the ingredients to my grocery list and made a batch!
These cookies come together in just one bowl and are really easy to make. I baked them on a super stormy June day and they didn’t flatten out one bit – a danger with summer baking in the South!
Here’s the recipe, just as it appears on that hand written recipe card.
Monster Cookies
- 1 cup peanut butter
- 1/2 cup margarine or butter, softened (I used butter)
- 1 1/4 cup brown sugar
- 1 cup sugar
- 3 eggs
- 2 tsp. baking soda
- 1 tsp. vanilla
- 4 cups quick-cooking oats
- 1 cup M&M’s
- 1 cup butterscotch chips (I couldn’t find these and used Reeses Pieces instead)
- 1 cup salted peanuts
- 2 cups flour
In a large mixing bowl, cream peanut butter, butter/margarine and sugars. Add eggs, one at a time, beating well after each addition. Add baking soda and vanilla. Add oats, M&M’s, butterscotch chips and peanuts. Let stand for 10 minutes. Stir in flour (dough will be crumbly).
Shape 1/8 cup full into balls. Place on greased cookie sheet. Gently flatten cookies and press a few candies on the top of each cookie. Bake at 325 until edges just begin to brown, around 8 minutes. Carefully transfer to a wire cooling rack.
Makes around 3 dozen, depending on the size of your cookies and how much dough you eat. 🙂
Tips: I used my medium cookie scoop and silicone baking mats (so I didn’t have to grease the cookie sheets). The salted peanuts are a good deal at Dollar Tree, and I found the best price on candy at Dollar General.

Let me know if you try this recipe! It would be fun to do with seasonal M&M’s or colored M&M’s that coordinate with a party theme.
On The Menu
Breakfast:
- Cereal
- Avocado Toast
Lunch:
- Sloppy Joe Leftovers
- Turkey Subs with Havarti Cheese, Tomato and Avocado
Supper:
- Super Sloppy Joes/Corn Saute/Chips
- Chicken Enchiladas/Taco Rice/Watermelon
- 15 Minute Pork Roast/Oven Roasted Potatoes/Garlic Green Beans
- Pasta with Chicken Meatballs and Red Sauce/Caesar Salad
- BBQ Pork from the freezer/Mac and Cheese
- Leftovers
- Supper Out


Click this image to pin for later!

This is so interesting! We have made and eaten lots of Monster Cookies over the years and had never heard of butterscotch chips in them until we had one this weekend. I liked it, but my kids weren’t so sure about the new flavor in their cookie.
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I honestly don’t remember my mom putting butterscotch chips in hers, but it’s in the recipe so she probably did. I think they would be a nice balance with the saltiness of the peanut butter and the nuts.
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These cookies look amazing! I’m saving this recipe. 😊
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You will love them! They’re so yummy.
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