Back To Basics Peanut Butter Marshmallow Confetti Squares

peanut_butter_marshmallow_1_mfbThis summer we are having a large family reunion with relatives coming from all across North America.  We have all kinds of fun activities planned including a softball tournament, a family wedding dress fashion show, which includes dresses dating back as early as 1914, and a fantastic Ukrainian dinner and old-time polka dance with music by my Uncle Julian and friends. (By the way, my Uncle Julian in the video below is self-taught, doesn’t read music and is amazing!)


I volunteered to put together our family cookbook.  It’s going to be a collection of recipes from all the branches of the family tree, and some of these recipes we’ve been making for generations.  Some are new and exciting, and some are old and trustworthy, sort of like the people in my family.

I’ve been collecting these recipes for weeks and re-typing them on an online cookbook printer’s website.  It’s extremely time-consuming and I find myself logging on to add a recipe whenever I have a free minute or two, and then pulling my hair out a minute or two after that.

I’ve learned a few things in this maddening exciting process.

1. It’s frustrating to the first-time maker of any recipe if the directions are vague, incorrect, or missing altogether.  As my cousin pointed out to me, not everyone knows what “a moderate oven” is, and if she had to guess it would be one in the $500.00 price range.

2.  There is a difference between 1 cup sifted flour and 1 cup flour, sifted.  Did you realize that? I’ll bet when your great-grandmother wrote down her chocolate cake recipe, in pencil no less, that she knew that.  She just never wrote it down, in pencil or otherwise.

3.  Butter is NOT interchangeable with margarine.  In my humble opinion, there is no planet, star, or solar system, in the entire universe of universes where margarine is a viable substitute for butter.  Period.

4.  Sometimes recipes are over complicated. I’m all for experimenting and finding new ways to do something, but sometimes it’s OK to use the microwave to heat milk, and it’s OK to use a fork to whisk eggs.  No need to buy every kitchen appliance ever made just to make mac and cheese, right?

peanut_butter_marshmallow_4_mfbWith that said, this little recipe has been found in every grandmother’s drawer and in every church cookbook since the dawn of time.  And there’s a reason.  It’s basic, it’s quick, and it’s absolutely yummy!

Peanut Butter Marshmallow Confetti Squares


  • 1/2 cup butter
  • 1 cup peanut butter
  • 1 package (300 g / 2 cups) butterscotch chips
  • 5 – 6 cups mini marshmallows – white or colored
  • confetti sprinkles (optional)


Line a 8″x12″ baking pan with parchment paper.

In a medium pot, over low heat, melt butter, peanut butter, and butterscotch chips, stirring constantly.  Remove from the heat and let it cool for a minute or two.

Add marshmallows and quickly stir just until the marshmallows are coated.  Quickly pour into the baking pan and use a spatula to gently spread to the edges of the pan and to spread as evenly on top as you can.  Sprinkle with confetti sprinkles. Refrigerate until set.  Cut into squares.

Check out my Peanut Butter Marshmallow Confetti Squares featured at FoodNow !

13 thoughts on “Back To Basics Peanut Butter Marshmallow Confetti Squares”

  1. Laura. I love your sentence about the new vs old, etc ! I think I will make this for our camping trip, but don’t tell LEB

    1. Our family cookbook will feature old and new recipes – but an old fashioned cookbook? Now my wheels are turning for sure! That sounds like something I could really get my teeth into.

  2. I have always loved this recipe, my Granny used chocolate chips and colored marshmallows. She called them Stained Glass candy. Now I have to make these for tomorrow night’s party. Thanks for reminding me!

  3. I used 1 cup butter, 1 cup peanut butter, 1.5 bags chocolate chips, 1.5 bags mini marshmallows because we like less peanut butter taste and they are delicious!

  4. I recently tried this recipe and must say I’m a little disappointed.. perhaps it’s due to my lack of baking skills, but where it said “cool for minute” I took it literally and let it cool for a minute. the result was Brown goop with no marshmallows :( they all melted into the mix. if you could change it to read ” let sit until cool” perhaps you would save me and other non bakers a lot of headaches …

    1. hi, sorry they did not work out for you, but if you let it cool too long, then it will set and become too hard to mix the marshmallows in. The mixing of the marshmallows should be quick, until just coated, then poured immediately into your pan. The marshmallows will melt slightly, but they should retain their shape. I apologize if my instructions were not specific enough. I will adjust the instructions slightly. Thanks!

  5. Aww I think it’s best to melt the chips first before adding the butter and PB….otherwise the chips don’t fully melt and are crunchy.

    1. I made this today for an outdoor picnic and I never melt my chips ahead of time, but please do whatever works best for you. :)

Say your piece. State your mind. Have your say.