Disappearing Marshmallow Brownies

A photo of disappearing chocolate marshmallow brownies

By Nell Wallace, 1966

Brownies are one America’s favorite desserts. If you are throwing a party and you need guests, offering them free brownies is one way to get them to come. This recipe for Disappearing Marshmallow Brownies is the perfect recipe to make the perfect brownie. Offer these at your next gathering and your guests will leave with a very satisfied appetite.

“This recipe was adapted from the winner in Pillsbury’s 17th Bake Off. I found it in a sack of flour. I alway double it and use a 9 x13 pan. I’ve overbaked it and underbaked it, but it always disappears!” – Nell Wallace


  • 1/2 C butterscotch pieces
  • 1/4 C butter or margarine
  • 3/4 C all purpose flour
  • 1/3 C packed brown sugar
  • 1 t baking powder
  • 1/4 t salt
  • 1/2 t vanilla
  • 1 egg
  • 1 C miniature marshmallows
  • 1 C (6 oz. pkg.) semi-sweet chocolate pieces
  • 1/4 C chopped nuts


Melt butterscotch pieces and butter in 3 qt. heavy sauce pan over medium heat, stirring constantly. (It will burn easily.) Remove from heat; cool to lukewarm. Lightly spoon flour into measuring cup. Level off, add dry ingredients, vanilla, and egg to butterscotch mixture in saucepan; mix well. Fold into butterscotch batter, marshmallows, chocolate pieces and nuts. Mix just till combined, about 5 strokes. Spread in greased pan. 350′ for 20-25 minutes. DO NOT OVER BAKE. Center will be jiggly, but becomes firm upon cooling.

“These have been used over and over for cubs, boy scouts, Weblos, 4-H, etc. and are always the favorite treat on the plate.” – Nell Wallace

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