This is a recipe I have had forever, and never made. I made it yesterday and really liked it, but made some minor changes. Somewhat like a 7 layer bar/congo bar combination, but there is no coconut, and there are marshmallows. The only way I can describe one of the roles the marshmallows play is sort of the texture of a rice krispie treat. They also create a little crust on the top of the brownie. The original recipe also uses a 9x9 pan, which is harder to come by than an 8x8, and I did use one, but I am going to suggest an 8x8. If you're on the fence about making, I would try them once. I think they're really tasty, and afterall, it's only an 8x8 pan's worth...
1/2 cup butterscotch chips 1/2 tsp vanilla extract
1/2 stick butter 1 egg
3/4 cup flour 1 cup miniature marshmallows
1/3 cup packed brown sugar 1 cup semisweet chocolate chips
1 tsp baking powder 1/4 cup chopped walnuts or pecans
1/4 tsp salt
Heat oven to 350. I line an 8x8 pan with foil, then spray with cooking spray. Melt butterscotch chips and butter in a heavy medium saucepan over medium heat, stirring constantly. Remove from heat and cool to lukewarm. Put in a medium bowl, and add flour, brown sugar, baking powder, salt, vanilla and egg; mix well. Fold marshmallows, chocolate chips and nuts into batter just until combined. Now this is the fun part. Spread dough in prepared pan. I found that by spraying my fingers with the cooking spray, it was much easier to press the dough into the pan. Bake about 20 minutes; do not overbake. Bon appetit!