Chocolate Peanut Butter Cookie Bars

"Fast and fairly easy cookie bar that is tasty and will disappear from you cookie plate in a flash. Great for gifts or to share with those you work with. Adapted from a Local supermarket advertising mailer"
photo by newtocookingm&m photo by newtocookingm&m
photo by newtocookingm&m
Ready In:
20-24 cookies


  • 1 (18 1/4 ounce) package chocolate cake mix (experimenting with other cake flavors is OK)
  • 14 cup vegetable oil
  • 1 large egg
  • 1 cup dry roasted peanuts
  • 1 (14 ounce) can sweetened condensed milk
  • 12 cup creamy peanut butter (or crunchy)
  • 12 ounces semi-sweet chocolate chips
  • 12 ounce cooking spray


  • Heat oven to 350°F
  • Coat a 9x13" baking pan lightly with non-stick cooking spray.
  • Beat cake mix, oil and egg in large mixing bowl, on medium speed until somewhat crumbly. Add peanuts and stir. Measure out and set aside 1 1/2 cups of the cake crumb peanut mixture to be used later. Pour remaining mixture into prepared pan and press out to evenly cover the bottom of the pan.
  • Beat sweetened condensed milk and peanut butter in a medium bowl until smooth (hint: use the same bowl you used for cake crumbs). Spread this over the prepared cake crust. This will be a bit challenging. Be careful but don't worry if you struggle with the cake layer a bit.
  • After spreading the mixture sprinkle about 4 oz of semi sweet chocolate chips evenly over the peanut butter mixture.
  • Pour reserved cake crumb mixture over the top and spread evenly, pressing down gently.
  • Bake 25 - 30 minutes until set. Remove from oven. Turn oven off. Top with Remaining about 6 oz more of chocolate chips. Return to oven for 1 minute and then remove from oven. Use a spatula to spread the chocolate evenly over the top of the bars. Cool and store in covered container. Enjoy.
  • Note: You can be creative with this recipe. The cake flavor may be changed. Other flavor chips may be substituted for chocolate. Other nuts may be substituted or combined for/with peanuts. Other nut butters may be substituted for peanut butter. This one basic recipe can produce many bar variations.

Questions & Replies

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  1. Lil Sis
    I made this last night. Found mine in a Pillsbury cookbook but it didn't include the chocolate chips. I just drizzled mine with a chocolate glaze--cocoa, powedered sugar and milk. I also baked it in a 7x11 pan for 40 minutes. This is really delicious and I will definitely make it again. Thanks for posting!
  2. newtocookingm&m
    My husbands view on desserts has changed the pb plus sweetened condensed milk rocked his world! I would give it a 4 stars only because it is a little crumbly but paired w/ vanilla ice cream it is amazing a 5 star taste. Some of the crumbly was our fault we didn't realize we were out of chocolate chips -We used m&m's in the middle which was pretty we plan to do that again but we will make sure we add chocolate chips in and on top next time. Also we used chopped pecans instead of peanuts. Thanks for a great recipe we will make again we may turn it into an ice cream cake? YUM!!!



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