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Valentine’s Day Peanut Butter Cookie Bars

Valentine's peanut butter cookie bars

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These Valentine’s Day peanut butter cookie bars are one of our favorite Valentine’s Day treats in our house. Peanut butter cookies with all of the best Valentine’s candies cut into perfect squares. Scroll down for my recipe.

Valentine’s Day Peanut Butter Cookie Bars


  • 1/2 cup butter, unsalted, softened
  • 1/2 cup peanut butter
  • 1 egg
  • 1 cup brown sugar
  • 1 tablespoon vanilla extract
  • 1 cup flour
  • Valentine’s M&Ms
  • Valentine’s sprinkles
  • Reese’s hearts (about 6)
  • White chocolate hearts (about 6)


1.) Start by preheating the oven to 350 degrees.

Valentine's Peanut Butter cookie bars

2.) In a large mixing bowl, beat the butter, peanut butter, sugar, and egg until smooth.

3.) Beat in the flour until a soft dough forms

4.) Fold in the M&Ms.

5.) Spread dough into a greased baking dish or one lined with parchment paper. Firmly press the dough down. (I used a 9×9 baking dish).

Valentine Peanut butter cookie bars

6.) Top with sprinkles and add some more M&M’s on top.

7.) Bake in the oven for about 25 minutes. You want to remove it when the edges are golden and you can stick a butter knife or toothpick in and it comes out clean.

8.) Place on a cooling rack and allow to cool but not completely.

9.) Unwrap the Reese’s and chocolate hearts and press into the top of the cookie bars.

Valentine peanut butter cookie bars

10.) Slice and serve!

Valentine's peanut butter cookie bars

Linking some of the candies and sprinkles below

reese's pink valentine hearts reese's hearts white chocolate hearts valentine's m&ms valentine's sprinkles

Pink heart plate for valentine's day heart mug heart shaped bowls

I love to see what you create! So if you make this recipe, be sure to take a photo and tag me on Instagram @ourtiny_nest

<3 For more Valentine’s recipes & ideas check out <3

My cherry chocolate chip muffins

My Valentine’s Popcorn

These red velvet waffles

These Valentine’s outfit ideas


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Valentine's Peanut Butter cookie bars

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  • Reply
    January 25, 2023 at 9:22 am

    Oh boy, these sound dangerous!! Yum!

    • Reply
      January 25, 2023 at 11:09 am

      If you love chocolate and peanut butter they are!

  • Reply
    Deanna | Life By Deanna
    January 25, 2023 at 12:22 pm

    Chocolate and peanut butter is my fav combo!

  • Reply
    January 25, 2023 at 1:41 pm

    Those look scrumptious!!

  • Reply
    Pastor Natalie (Examine This Moment)
    January 25, 2023 at 10:00 pm

    These look really good. It is an easy to make recipe Valentine’s Day Peanut Butter Cookie Bar. Thank you for ready. đŸ¤—

    Pastor Natalie (Examine This Moment)

  • Reply
    vicki rheaume
    February 1, 2023 at 10:16 am

    What a great treat for Valentine’s Day

  • Reply
    February 2, 2023 at 11:32 am

    These look delicious, dangerous, and decadent and right up my alley. Featuring when my link party opens!

  • Leave a Reply