Photo: James Carrier
Total Time
50 Mins
Makes 9 or 16 brownies

Mini marshmallows melt into this walnut-topped brownie during baking, giving it a gooey, fudgy texture.

How to Make It

Step 1

In a 2- to 3-quart pan over low heat, frequently stir butter and chocolate until melted and smooth. Remove from heat and stir in sugar, eggs, vanilla, flour, and marshmallows until well blended.

Step 2

Spread batter evenly in a buttered and floured 8-inch square baking pan. Sprinkle top evenly with walnuts.

Step 3

Bake in a 350° oven until deep brown, 30 to 35 minutes.

Step 4

Run a knife between pan rim and brownie. Let cool in pan on a rack, about 1 hour. Cut into 9 or 16 squares.

Step 5

Notes: Nutritional analysis is per small brownie. Store brownies airtight for up to 2 days.

Ratings & Reviews


December 07, 2015
I just made this last night and it turned out amazing. I made 2 batches and I had to re-bake them for additional 10min or so since there were some parts that were too gooey after 30min in the oven.

Pumpkin1944's Review

December 11, 2013
I was very disappointed in the way these turned out. I kept thinking I must have missed something in the ingredients, but rechecked it and didn't. I was very skeptical about the amount of flour since it was only 1/2 cup. As others said, they don't set up and way too messy to eat.

flmaryann's Review

December 10, 2012
I was skeptical after reading the other reviews, but these were amazingly good! Very soft & chewy, and oh so easy to make! I used 1/2 cup semisweet choc chips because I didn't have any unsweetened choc, so I cut back on the sugar to just using 1 cup. Other than that, they turned out great! Will def make these again and again and again.

CptnMericah85's Review

November 04, 2012
Made these for a friend, we both loved 'em. Probably one of the best brownie recipes i've found. Somewhat gooey(which I liked) and simply delicious(and I hate sweets).

Lakenmt's Review

January 23, 2011
These did not set up at all...very gooey. The marshmallows gave it an oddly super sweet flavor...these were simply not good.

twilkers's Review

December 14, 2010
Made these brownies didn't have unsweetened chocolate so I used bittersweet. They were really easy to make but didn't set up at all in the pan. They were really gooey was looking for a cake like brownie. Husband said they had a good taste just not what I was looking for will stick with recipe from Hersheys similar to this.

cookfromsocal's Review

January 24, 2009
These are wonderful and so easy. You can't taste the marshmallows. Next time will press the walnuts into the batter before cooking as they fall off when eating. My husband really liked these. A definite repeat.

debobran's Review

November 23, 2008
Looks very good and easy to make... will consider making a batch for gift baskets for co-workers.