Ingredients1 h servings 431
- Preheat oven to 350 degrees F (175 degrees C). Grease a 9x13-inch baking dish.
- Beat butter, brown sugar, peanut butter, and white sugar together in a bowl until smooth and creamy. Add egg and egg yolk and mix gently. Gradually stir in flour, baking soda, and salt just until batter is mixed. Gently fold chocolate chips and marshmallows into batter. Spread batter into the prepared baking dish.
- Bake in the preheated oven until edges are lightly browned, 15 to 20 minutes. The center will set as it cools. Cool completely before slicing, about 30 minutes.
Per Serving: 431 calories; 24.6 51.2 6.2 55 306 Full nutrition
ReviewsRead all reviews 6
Wow! Yum! I didn't have mini marshmallows on hand, but I had large ones, so I cut those into six pieces and wow! This is one delicious cookie bar! I did read the reviews, so I knew to wait to cu...
Delicious! My only advice would be to make sure they're totally cooled before you cut them into bars and serve them.
The first day I made these, I would've rated them 5 stars for flavor, but 4 stars because they were very crumbly and fell apart. However, by day 2, they held together wonderfully! Like a peanut ...
Having grown up on Fluffernutters this recipe went in my favorites as soon as I saw it. I attempted to make it gluten free by using Cup for Cup gluten free all purpose flour. I baked for an add...