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Chocolaty Peanut Butter Cake

The two great flavors of chocolate and peanut butter come together in this moist cake. Kids of every age will be all over this one! —Brenda Melancon, McComb, Mississippi
  • Total Time
    Prep: 10 min. Bake: 30 min. + cooling
  • Makes
    12-15 servings


  • 2 cups miniature marshmallows
  • 1 package chocolate cake mix (regular size)
  • 1-1/4 cups water
  • 3/4 cup peanut butter
  • 1/3 cup canola oil
  • 3 large eggs
  • 1 cup semisweet chocolate chips


  • Preheat oven to 350°. Sprinkle marshmallows into a greased 13x9-in. baking pan. In a large bowl, combine cake mix, water, peanut butter, oil and eggs; beat on low speed 30 seconds. Beat on medium 2 minutes or until smooth. Pour over marshmallows; sprinkle with chocolate chips.
  • Bake 30-35 minutes or until a toothpick inserted in the center comes out clean. Cool on a wire rack.
Nutrition Facts
1 piece: 344 calories, 18g fat (5g saturated fat), 42mg cholesterol, 313mg sodium, 43g carbohydrate (28g sugars, 2g fiber), 7g protein.
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Average Rating:
  • skrilecz
    Apr 20, 2016

    Ugh! I think it's peanut butter that affects the taste. I won't make this again - and regret having done it at all ! Grammy

  • caesarsmommy
    Jun 6, 2015

    Can I give zero stars? I put into cupcake liners and the marshmallows made a gooey mess. Liners stuck to cupcake pan. Inside of cake too crumbly to bite into. Second batch attempted shorter cooking time but still a mess. Peanut butter tasted bland/kinda off too.

  • KristiBenshoof
    Jan 30, 2015

    Good cake, easy to make. I used peanut butter chips for half of the chocolate chips.

  • shultiscorners
    Jan 4, 2015

    Easy to make, I had a German Chocolate Cake mix. Was on the dry side. Sticky on the bottom. Took this to church, as people took pieces it feel apart on them. I won't make it again. Came home with about half in pieces, so I made some chocolate pudding and some cool whip and made a trifle. My family will eat it fixed this way.

  • Carmen21212
    Oct 6, 2014

    Easy to make and very moist. Will definitely make it again. Doesn't need frosting.

  • kmlvlnd
    Apr 25, 2014

    The bottom was sticky, had peanut butter taste, yet a bit on the dry side.Frosting - yes, needs some. I won't make it again.KLcakes

  • lisamaria728
    Mar 16, 2014

    I thought this cake was good, not great. I used a milk chocolate cake mix because I thought it would go well with peanut butter. I could definitely taste the peanut butter flavor, but maybe the chocolate chips on top weren't enough for me. I doubt I'd make it again.

  • kpkaren
    Feb 24, 2014

    Very good and easy cake to make. Doesn't need frosting because the chocolate chips make a nice topping. I didn't have a plan chocolate cake mix so I used devil's food. Worked just as well.

  • GrammyGrandma
    Sep 8, 2013

    Made this recipe for the first time for church easy and delicious. Everyone LIKED it and got several requests for the recipe. I will definitely make it again and again and again...

    Jul 4, 2013

    Hi!I Made This Cake For My Church PotLuckAnd They Loved It! Will Be Making It Over & Over Again! Love This Recipe!!!!