Peanut Butter Bars

I am very lucky to have my sister live 5 minutes from my house. We can get together for no reason at all and I love it!  She called me up the other day because she had to bring some treats for a shower she was headed to.  Knowing that I love to bake, she wanted to see if she could come over so we could bake them together and so I could get a new recipe that she was given by her sis-in-law. Isn’t she the best?! :) Thanks ky for introducing me to such a fantastic recipe!

We baked these together, and honestly, they are incredible.  She was right! The best peanut butter bars I have ever had! If you love the peanut butter and chocolate combo… you are going to LOVE these!

Peanut Butter Bars
These are amazing! Any peanut butter-chocolate lovers are going to find these irresistible!
Recipe type: Dessert
  • 1 cup butter, softened
  • 2 cups brown sugar
  • 1 cup sugar
  • 1 tsp. vanilla
  • 2 eggs
  • 1 cup peanut butter
  • 2 cups flour
  • 2 tsp baking soda
  • ¼ tsp. salt
  • 2 cups old fashioned oats
  • ⅓ cup butter, softened
  • 2 Tbsp. cocoa
  • ¼ tsp. salt
  • 1 tsp. vanilla
  • 4 cups powdered sugar
  • ¼ cup warm milk
  1. Cream butter and sugars together in a large bowl.
  2. Beat in eggs, vanilla and peanut butter.
  3. Mix in flour, baking soda and salt. Then mix in the oats.
  4. Spread dough into a greased jelly roll pan. Press down so entire pan is evenly covered.
  5. Bake at 325 degrees F for 20 minutes. If will appear to still be a little soft when it comes out.
  6. Let cool completely.
  1. Beat butter, cocoa, salt and vanilla together. Add in powdered sugar and warm milk and beat until smooth. Spread evenly over rolled peanut butter bars.



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  1. I received a post update from Zesty Cook about it being Peanut Butter Month, saw your photo and had to click through to see the recipe. It’s morning here & I wish I had one of those bars to have with my coffee. Will be making these for lunch!

  2. lisa g.

    This look really yummy! Ive been looking hard online for a great recipe like yours. Ive tossed out all the ones Ive baked so far (NOT from this site). They all are either dry, crumbly, soggy, way too sweet, greasy, uncooked, or had missing ingredients such as eggs.
    I really hope your recipe ends my search!