brownies & bars

(no flour!) Triple Peanut Butter Monster Cookie Bars

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No flour triple peanut butter monster cookie bars are loaded with peanut butter, peanut butter chips, mini reese’s pieces, and oatmeal! This recipe makes an entire cookie sheet of bars & they freeze perfectly. Perfect for lunchboxes or snacks for the week.

No flour triple peanut butter monster cookie bars are loaded with peanut butter, peanut butter chips, mini reese's pieces, and oatmeal! This recipe makes an entire cookie sheet of bars & they freeze perfectly. Perfect for lunchboxes or snacks for the week.

  If you’ve followed this blog or looked through the recipe index, you know that we are obsessed with all things peanut butter & oatmeal. One of our favorites are these (no flour!) Monster Cookie Bars. It was only a matter of time until I made an all Peanut Butter version of our favorite.

These cookie bars are one of THE BEST things I have eaten. The last time I said that was when I posted these Triple Peanut Butter Monster Cookies. You see the peanut butter pattern here….

Maybe we should count how many times I say peanut butter in this post 🙂

No flour triple peanut butter monster cookie bars are loaded with peanut butter, peanut butter chips, mini reese's pieces, and oatmeal! This recipe makes an entire cookie sheet of bars & they freeze perfectly. Perfect for lunchboxes or snacks for the week.

These cookie bars have no flour! They are loaded with peanut buttery goodness in three ways: peanut butter, peanut butter chips, and mini reese’s pieces. They also freeze perfectly. I cut the bars into squares (use a pizza cutter, so easy!) and then put a couple into sandwich bags and place in the freezer. They are actually really good straight from the freezer. Or leave them on the counter for a few minutes or warm in the microwave for 10-15 seconds.

No flour triple peanut butter monster cookie bars are loaded with peanut butter, peanut butter chips, mini reese's pieces, and oatmeal! This recipe makes an entire cookie sheet of bars & they freeze perfectly. Perfect for lunchboxes or snacks for the week.

If you love monster cookies, oatmeal, and peanut butter then try these cookie bars and also take a look at all these other monster cookie treats!

(no flour!) Monster Cookie Bars, Triple Peanut Butter Monster Cookies, Monster Cookie Dough Cheeseball Dip, or these Oatmeal Chocolate Chip Peanut Butter Bars. Loaded reese’s oatmeal peanut butter cookies. You seriously can’t go wrong with any of these.

No flour triple peanut butter monster cookie bars are loaded with peanut butter, peanut butter chips, mini reese's pieces, and oatmeal! This recipe makes an entire cookie sheet of bars & they freeze perfectly. Perfect for lunchboxes or snacks for the week.

Have a great weekend friends. Thanks for stopping by!

Nutrition

Calories

338 cal

Fat

7 g

Carbs

61 g

Protein

11 g
Click Here For Full Nutrition, Exchanges, and My Plate Info
(no flour!) Triple Peanut Butter Monster Cookie Bars

No flour triple peanut butter monster cookie bars are loaded with peanut butter, peanut butter chips, mini reese's pieces, and oatmeal! This recipe makes an entire cookie sheet of bars & they freeze perfectly. Perfect for lunchboxes or snacks for the week.

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Ingredients

  • 1/2 cup (1 stick) salted butter, softened
  • 1 cup packed brown sugar
  • 1 cup granulated sugar
  • 1 1/2 cups creamy peanut butter
  • 3 large eggs
  • 1 tablespoon vanilla extract
  • 1 1/2 cups quick oats
  • 3 cups old-fashioned oats
  • 1 teaspoon baking soda
  • 1 bag (10 oz) Mini Reese's Pieces baking bits
  • 1 cup peanut butter chips

Instructions

  • Heat oven to 350 degrees. Prepare a cookie sheet by lining with parchment paper, silpat liner, or spraying with cooking spray.
  • In a large bowl, or bowl of stand mixer with the paddle attachment, combine butter, brown sugar, granulated sugar, and peanut butter. Mix until fluffy and pale in color. About 1-2 minutes.
  • Add the eggs and vanilla extract. Mix together.
  • Add in the oats and baking soda. Mix until combined.
  • Add in the reese's pieces and peanut butter chips (reserve some for top of bars if wanted). Stir together with a wooden spoon or spatula until combined.
  • Dump dough onto the cookie sheet and spread out. This will take several minutes, but it can be done. Sprinkle the reserved reese's pieces and peanut butter chips on top (if wanted). Press down slightly into dough.
  • Bake for 17-20 minutes. The edges will be lightly browned and the middle will still look pale and underdone, but it will finish baking as it cools.
  • Let cool for at least an hour so the bars can firm up and come together. You do not want to over-bake these!

Notes

You can find the mini reese's pieces baking bits in the baking aisle by the chocolate chips.

To freeze these: place 2 into a sandwich size Ziploc bag and place in freezer. They are good cold from the freezer, or set them on the counter to thaw a bit, or microwave them for 10-15 seconds. They're also perfect for lunch boxes. Put a frozen bag of them into the lunch box and they will be ready by lunch time.

Use a pizza cutter to make cutting these so easy.

7.8.1.2
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No flour triple peanut butter monster cookie bars are loaded with peanut butter, peanut butter chips, mini reese's pieces, and oatmeal! This recipe makes an entire cookie sheet of bars & they freeze perfectly. Perfect for lunchboxes or snacks for the week.

 

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6 Comments

  • Reply
    Anne
    October 4, 2015 at 7:25 pm Tried these today and I loved them!! My family did, too. My 11 yr old son said- "These are a 10 out of 10, I could not stop eating them!" I used all quick oats, 3/4 cup of each sugar, chunky peanut butter and chocolate mixed with peanut butter chips. Then I put mini Reese's cups on top. Just used what I had around ?. These are very versatile and a large recipe. Easy to make, too!! Thank you so much!
    • Reply
      Together As Family
      October 4, 2015 at 7:47 pm I love your variation! My kids can't stop eating them either :) Thanks so much, Anne, for coming back and commenting and for your kind words!
      • Reply
        Anne
        October 13, 2015 at 12:55 am I know I'm crazy to comment again, but my husband loved these so much he made them yesterday. It was simple for him and they must have been delicious because the whole pan is already gone!
        • Reply
          Together As Family
          October 13, 2015 at 9:26 am Hey! I love hearing from readers who have tried recipes...... It makes my day, so thank you! I'll be honest, I make a lot of things but these monster cookie bars are by far, the one thing that we make over and over again. We love them too, and I am so glad you guys love them! Have a good day :)
  • Reply
    {no flour!} Cookies n' Cream Oatmeal Cookie Bars - Together as Family
    February 28, 2016 at 9:21 am […] made these classic {no flour} monster cookie bars and then also a {no flour} triple peanut butter monster cookie bar version as well! I figured it was about time to add another […]
  • Reply
    Renee
    May 10, 2019 at 9:12 am Hi! Do you think it would work to sub. mini Reese's Cups instead of the Mini Reese's Pieces ? Cause i'm not really a fan of the Reese's Pieces.....But I love chopped up Reese's Peanut Butter Cups in my Oatmeal Chocolate Chip Cookies so I thought they would taste good in these bars
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