Microwave Mississippi Mud Brownies

I have been using this recipe for years!! I found it in the newspaper, and believe me everyone loves it!!

• Ready In: 20 mins
• Serves: 16

Ingredients

• 1⁄2 cup butter or 1⁄2 cup margarine
• 1  cup sugar
• 2  eggs, slightly beaten
• 3⁄4 cup flour
• 1⁄8 teaspoon salt
• 1⁄4 cup  cocoa
• 1  teaspoon vanilla
• 1⁄2 cup  chopped pecans
• 1 1⁄2 cups mini marshmallows

• Chocolate frosting

• 1⁄4 cup butter or 1⁄4 cup margarine
• 3  tablespoons milk
• 3  tablespoons  cocoa
• 1⁄2 teaspoon vanilla
• 2  cups  sifted powdered sugar

Directions

1. Place butter in a 2 qt bowl; microwave on High 1 min or until butter melts.
2. Stir in sugar and eggs; set aside.
3. Combine flour, salt& cocoa; stir well.
4. Combine with egg mixture.
5. Stir in vanilla and pecans.
6. Spread batter in a glass 8" square dish sprayed with Pam.
7. Shield corners with triangles of aluminum foil, keeping foil smooth and close to dish.
8. Place dish atop a micro safe ceral bowl inverted in the oven.
9. Microwave at Medium 6- 7 mins, turning dish one half turn after 3 mins.
10. Remove shields; microwave on High 2-3 mins or until top is almost dry.
11. Remove from oven to cool Sprinkle marshmallows over brownies; cover with aluminum foil.
12. Let stand 2 mins.
13. Remove foil.
14. Spread with frosting; cool completely on rack and cut into squares.
15. Chocolate Frosting: Combine butter and milk and microwave on High 1 1/2- 2 mins.
16. or until butter melts.
17. Stir in cocoa and vanilla.
18. Gradually add powdered sugar, beating at medium with electric mixer until smooth.