Mississippi Mud Brownies
["1/2 c. butter or margarine", "1 c. sugar", "2 eggs, slightly beaten", "3/4 c. all-purpose flour", "1/8 tsp. salt", "1/4 c. cocoa", "1 tsp. vanilla extract", "1/2 c. chopped pecans", "1 1/2 c. miniature marshmallows", "Chocolate Frosting (recipe follows)"]
["Place butter in a 2-quart mixing bowl; microwave at High 1 minute, or until butter melts.", "Stir in sugar and eggs; set aside. Combine flour, salt and cocoa; stir well.", "Stir dry mixture into egg mixture.", "Stir in vanilla and pecans.", "Spread batter in a greased and floured 8-inch square baking dish.", "Shield corners with triangles of aluminum foil, keeping foil smooth and close to dish.", "Place baking dish on a microwave-safe cereal bowl inverted in the oven.", "Microwave at Medium (50% power) 6 to 7 minutes, giving dish a half turn after 3 minutes.", "Remove shields; microwave at High 2 to 3 minutes, or until top is almost dry.", "Remove from oven; place directly on countertop to cool."]
["butter", "sugar", "eggs", "all-purpose", "salt", "cocoa", "vanilla extract", "pecans", "marshmallows", "Chocolate Frosting"]