Chocolate Butterscotch Marshmallow Brownies

This brownie recipe includes butterscotch and marshmallows.
6 oz. package butterscotch chips
1/2 cup butter
2/3 cup brown sugar
1-1/2 cup flour
1 teaspoon vanilla
2 teaspoon baking powder
1/2 teaspoon salt
2 eggs
2 cups miniature marshmallows
2 cups semisweet chocolate chips
1/2 cup nuts, chopped

1. Melt butterscotch chips and butter in heavy pan over medium heat. Remove from heat and cool.
   
2. Add brown sugar, flour, vanilla, baking powder, salt, and eggs to butterscotch mixture. Mix well.
   
3. Stir in marshmallows, chocolate chips, and nuts.
   
4. Bake in 9 x 13 baking pan at 350 degrees F for 20 to 25 minutes.
   
5. Cool and cut into brownies.