Royal Chocolate Marshmallow Bars

Delicious in every way: Royal Chocolate Marshmallow Bars

Yield: 3 dozen bars

Prep Time: 30 minutes

Cook Time: 22 minutes

Royal Chocolate Marshmallow Bars



  • 3/4 cup (1 1/2 sticks) butter, softened
  • 1 1/2 cups granulated white sugar
  • 3 large eggs
  • 1 teaspoon vanilla extract
  • 1 1/3 cups all-purpose flour
  • 1/2 teaspoon baking powder
  • 1/2 teaspoon salt
  • 3 tablespoons unsweetened cocoa


  • 4 cups miniature marshmallows


  • 8 ounces milk chocolate chips
  • 3 tablespoons butter
  • 1 cup peanut butter
  • 2 cups Rice Krispies


  1. Preheat the oven to 350 degrees F. Spray a 15-in. x 10-in. x 1-in. baking pan with nonstick spray.
  2. In a large mixing bowl, use an electric mixer to combine the butter and sugar. Add the eggs and vanilla, and continue to mix until light and fluffy.
  3. Combine the flour, baking powder, salt and cocoa, and add to the butter mixture.
  4. Spread the batter in the prepared pan, and bake 15 to 18 minutes.
  5. Sprinkle marshmallows evenly over the first layer and return to the oven for 2-3 minutes. Using a knife dipped in water, spread the melted marshmallows evenly over the first layer. Let cool.
  6. For the topping, combine the chips, butter and peanut butter in a small saucepan. Cook over low heat, stirring occasionally, until melted and well-blended. Remove from heat and stir in the Rice Krispies. Spread evenly over bars.
  7. 7. Chill until firm, and cut into bars.
SOURCE: (via Taste of Home)

10 Responses to “Royal Chocolate Marshmallow Bars”

  1. postedFeb 13, 2009 5:32 PM

    I love these bars, we have been making them for years. I think my grandma got the recipe from an old Taste of Home magazine. A true keeper!!
    Love the pictures, makes me hungry for one now!

  2. postedJan 29, 2014 8:26 AM

    OMG Lori…, I have to make these!!!! look sooooo good

  3. postedJan 31, 2014 12:27 PM

    Is there an error in this recipe? My bottom layer is the color of coffee ice cream, very light. Not chocolate looking like the picture. Just wondering.

    • postedFeb 1, 2014 7:36 AM

      no errors… how did it turn out in the end?

  4. postedFeb 1, 2014 9:34 AM

    Lori, unfortunately the bottom was almost “cracker-ish”. Hard and crumbly. I must have done something wrong.

  5. postedFeb 14, 2014 10:39 AM

    My top layer was to hard to spread:( any advice

  6. postedSep 2, 2014 12:40 PM

    Oh my! My grandma used to make these, she always called them I love you bars. She said she made them when she thought of me and to tell me how much she loved me. I now make them for my kids when they are having a rough day. Thanks for the memories!

  7. postedSep 14, 2014 12:03 PM

    I made this today and it turned out amazing. Thank you for sharing. For the topping I microwaved the ingredients for 45 seconds in 15s increments and it was very easy to spread.

  8. postedSep 16, 2014 2:42 PM
    Leslie Z

    Not a huge fan of peanut butter is there something l can use as a substitute?

    • postedSep 21, 2014 12:09 PM

      another nut butter?

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