Chocolate Marshmallow Brownies
["1 c. butter", "1 2/3 c. white sugar", "1 1/2 c. flour", "1 tsp. baking powder", "1 c. chopped nuts", "1/3 c. cocoa", "4 eggs, beaten", "1/2 tsp. salt", "1 tsp. vanilla"]
["Melt the butter.", "Add the remaining ingredients; beat well. Bake in large cookie sheet at 350\u00b0 for 30 minutes.", "Remove from oven; cover with miniature marshmallows.", "Bake until they are nicely puffed up.", "Frost while still warm."]
["butter", "white sugar", "flour", "baking powder", "nuts", "cocoa", "eggs", "salt", "vanilla"]