Peanut Butter Millionaire Shortbread Bars

Peanut Butter Millionaire Shortbread Bars are the ultimate dessert! These triple layered treats have a shortbread crust, peanut butter caramel filling, and chocolate fudge-like topping. They’re gooey, smooth, creamy, buttery, and delicious! A salty sweet dessert everyone will love.



Shortbread Crust

Peanut Butter Caramel

Chocolate Layer


  1. Set the oven to 350 degrees.
  2. Next in a large mixing bowl add the butter and sugar.  Beat with an electric mixer until light and fluffy.  Then add in the egg and vanilla extract and beat until just combined.
  3. In a separate bowl combine the flour and salt.  Add to the butter & sugar mixture and beat until thoroughly combined and a dough forms.
  4. Next line an 8×8 baking dish with parchment paper and add the shortbread dough to the pan.  Spread and flatten evenly. I recommend using slightly wet fingers to avoid the dough sticking!
  5. Bake for 20 minutes or until the edges are browned.
  6. Once the shortbread crust is removed from the oven, let cool completely.  Then make the peanut butter caramel.  Add the peanut butter, butter, heavy cream, and light brown sugar to a small saucepan on the stove.  Melt the ingredients together and bring to a boil.  Reduce the heat and let simmer for a few minutes to thicken.  Remove from the heat to thicken further and add a pinch of salt.
  7. Pour the peanut butter caramel over the completely cooled shortbread crust.  Spread evenly and then place in the refrigerator for about 1 hour or until the caramel has hardened to the touch.
  8. Next begin the chocolate top layer.  Simply melt the chocolate chips and heavy cream together.  Melt in the microwave in 15 second intervals, stirring in between each one, or in a double boiler.  The result may be a little thick, but do not worry that is how it’s supposed to be.
  9. Add the chocolate layer on top of the caramel and spread evenly.  I again recommend using slightly wet fingers to do this.  Then place in the fridge for another 1-2 hours to completely set.
  10. Add a generous sprinkle of salt, cut into squares, and enjoy!

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