Monster Cookies always send me down memory lane. I used to grab handfuls of them from my grandmother's kitchen, and they are my favorite cookies in the world!

Monster Cookies Recipe (peanut butter, oatmeal, chocolate chips, M&Ms) |
This recipe is super near and dear to my heart, especially during the holidays.
These cookies are part of every memory I have of going to my Granparents' for the Holidays.
My Grandma would take those big tupperware-like cake carriers and turn them upside down to fill with cookies and treats when the family would come to visit.
It's amazing how many cookies those cake carriers can hold.
They were like the Marry Poppins bag of tupperware.
It didn't matter how many times I stuck my hand in there, it always came out with a monster cookie.
…or three.
So go on and make a cake-carrier-full of these babies for the family this year.
Your grandchildren may even write a blog post about it one day ๐Ÿ™‚
Monster Cookies Recipe (peanut butter, oatmeal, chocolate chips, M&Ms) |
Dsc 0047 Edited

Monster Cookies


  • 1/2 c. butter, softened (not melted)
  • 1 1/2 c. peanut butter
  • 1 c. brown sugar
  • 1 c. sugar
  • 3 eggs
  • 1 tbsp. corn syrup (I've used maple syrup in a pinch-- no maple taste in the cookies)
  • 1 tsp. vanilla
  • 2 tsp. baking soda
  • 1 tbsp hot water
  • 4 1/2 c. old fashioned oats
  • 1/4 tsp. salt
  • 1 package M&Ms (plain or peanut)
  • 1 c. semi sweet chocolate chips


  1. Preheat the oven to 350 degrees F.
  2. Beat together the peanut butter and butter until smooth and combined.
  3. Beat in the brown sugar and granulated sugar.
  4. Add the eggs, one at a time, and mix in between each addition.
  5. Mix in the corn syrup and vanilla.
  6. Dissolve the baking soda in the hot water, then mix into the batter.
  7. Mix in the oats and salt. Fold in the M&Ms and chocolate chips.
  8. Scoop cookie dough by rounded tablespoons onto a parchment or silicon lined baking sheet. Bake for 9 minutes, until the edges look set and golden, but the top is not brown.


There is no flour in this recipe. I promise, they'll still turn out just right ๐Ÿ™‚