Choco-Mallow Brownies
["1/2 c. margarine, softened", "1 c. sugar", "2 eggs", "3/4 c. all-purpose flour", "1/2 tsp. baking powder", "pinch of salt", "3 Tbsp. cocoa", "1 tsp. vanilla", "1/2 c. chopped pecans", "2 c. miniature marshmallows", "Chocolate Frosting (recipe follows)"]
["Cream butter in a large mixing bowl.", "Add sugar, beating until fluffy.", "Add eggs, one at a time, beating at medium speed of electric mixer.", "Set mixture aside.", "Combine flour and next 3 ingredients; add to creamed mixture, stirring well.", "Stir in vanilla and chopped pecans.", "Spoon batter into greased 9-inch square pan.", "Bake at 350\u00b0 for 18 to 20 minutes.", "Remove from oven; sprinkle with marshmallows.", "Cover with foil; allow to stand for 5 minutes to melt marshmallows.", "Remove foil.", "Spread frosting on top of warm brownies; cool and cut into squares."]
["margarine", "sugar", "eggs", "all-purpose", "baking powder", "salt", "cocoa", "vanilla", "pecans", "marshmallows", "Chocolate Frosting"]