Monster Cookies

Over the weekend while we were back cleaning out the house I grew up in, we spent a lot of time in the kitchen. As I was cleaning out cupboards, cabinets and drawers, I found myself lost in the memories of all the times I spent in that kitchen.

The kitchen was definitely the center of our house, both literally and figuratively. It’s where I spent some of the happiest times with my mom, learning to make new things and making things that we’d made together 100 times. It’s where I learned how to bake, how to cook without measuring and how to clean up the dishes as I went.

When I reached into one of the cabinets and pulled out a stainless steel mixing bowl, I immediately thought of monster cookies. They were one of my favorite cookies to make with my mom because there was very little measuring involved. And they could be different every time….and still taste just as good. Whenever we made them, she would let me throw in whatever we had laying around- even cereal- on one condition: There must ALWAYS be M&Ms. You can throw in as many things as you want, but if there are no M&Ms, they’re just not monster cookies.

I didn’t take that bowl home with me. I have plenty of mixing bowls already. But I did take home the comfort of knowing that even when circumstances force you to get rid of your “stuff”, they can never force you to get rid of your memories.

So today, on my last day of vacation before school starts back up again, I made some monster cookies in my own kitchen for a friend’s birthday tomorrow. And as I sat there eating one fresh out of the oven, I made a silent little toast to memories of the past, and to all those memories still to come.

Over the years I’ve healthified these just a bit, cut down on the butter and sugar, used brown rice krispies instead of regular, switched to natural peanut butter and added more oats. In the interest of making a recipe, I’ve given you my best estimation on how much of all the mix-ins I used…but really, it doesn’t matter. Just throw them all into the bowl, mix them around a bit and enjoy.

And NEVER forget the M&Ms.

Monster Cookies

by Lindsay L

Prep Time: 10 min

Cook Time: 10 min

Keywords: bake dessert oats peanut butter chocolate


  • 6 Tbsp butter, softened
  • 1/2 c brown sugar
  • 1/2 c peanut butter
  • 1 egg
  • 1 tsp vanilla
  • 1 1/4 c rice krispies
  • 1 1/4 c oats
  • 1/2 c whole wheat flour
  • 1/2 tsp baking powder
  • 1/2 tsp cinnamon
  • 1/2 c chocolate chips
  • 1/2 c butterscotch chips
  • 1 c M&Ms


1. Cream the butter, sugar and peanut butter together in a medium-sized bowl.

2. Add the egg and vanilla and mix well.

3. Stir in the oats, flour and rice krispies.

4. Gently fold in the chocolate chips, butterscotch chips and M&M’s.

5. Scoop onto a greased cookie sheet in desired size.

6. Bake 10-12 minutes at 350 degrees F.

Note: Other add-ins could include chopped Reese’s, toffee bits, heath bars….the sky’s the limit

Powered by Recipage


What was your favorite childhood cookie?


About Lindsay

Lindsay Livingston is a Registered Dietitian and new mom from Columbus, Ohio. On her blog, she shares simple, healthy recipes, nutrition tips, workouts and snapshots of her life. Follow her on Twitter @LeanGrnBeanBlog and Instagram @TheLeanGreenBean and be sure to subscribe via RSS or email so you never miss a post!


  1. m&m’s in cookies are always so much better than chocolate chips because they’re rainbow. I wish the bag was only orange and blue ones because I have this theory that they taste the best. Great recipe. I’m definitely making these.
    Maren recently posted..When I was 5 I had a boy haircut and my boyfriend doesn’t like it…

  2. I love monster cookies! These look so fantastic. I could really go for one (or more) of these right now.
    Rachel @ The Avid Appetite recently posted..My Fall TV Line Up

  3. These look soo good! :)
    My favorite child hood cookie would have to be my moms homemade chocolate chip cookies and all her christmas cookies :)
    Shannon recently posted..Serious Food Rut & Monday Meals

  4. I am a huge fan of big, soft chocolate chip cookies…can’t resist em’! These look delicious…I think I may make them for my sister’s birthday! I know she’d love them!
    Parita @ myinnershakti recently posted..Boiling Tempeh

  5. Peanut butter cookies all the way. :)
    Matt @ The Athlete’s Plate recently posted..Restaurant Fire

  6. Thank you. I love you!

  7. I still love rice krispie cookies best. Good memories cooking with you!

  8. i LOVE monster cookies! funny story: the first time i made them was with my sister in my first post-college apartment with the TINIEST kitchen ever. we wanted to make them to send to brad & keith in care packages, so we found a recipe on and got to work mixing in ingredients. never did we think about the fact that a recipe that calls for 9 CUPS of oats would make a TON of cookies. literally 10+ pans of cookies into & out of the oven and we more cookies than our boys could even think of eating! :)

    we packed some up and mailed them out, i kept some, liz took some…. that was a lot of cookies.
    sarah (sarah learns) recently posted..what i ate [working from home] wednesday

  9. What sweet memories :) I think I may have to try veganizing monster cookies! They look delicious.
    Kaitlyn@TheTieDyeFiles recently posted..WIAW: The Experiment

  10. Droooool! I love monster cookies. I love them so much that I seriously only allow myself to make them about twice a year. I have no self control when those guys are sitting around. :)

  11. yum – we love monster cookies! well, really, any type of cookie. but i love the colors of the m&ms in monster cookies the best.

  12. These!! These are my favorite cookies! Seriously, there is no kind better, in my opinion :)
    Tessa @ Amazing Asset recently posted..WIAW- Back At Home

  13. I’ve always loved regular chocolate-chip cookies
    LauraJayne recently posted..Payson Fresh WIAW

Speak Your Mind


CommentLuv badge

FitFluential Is Fitness Found The Lean Green Bean