1 c. butter
3 (1 oz.) sqs. unsweetened chocolate
3/4 c. all-purpose flour
1/2 tsp. baking soda
1/4 tsp. salt
2 lg. eggs
1 c. granulated sugar
2 tsp. vanilla extract
2 oz. milk chocolate
1 c. marshmallow topping
1/2 c. mini marshmallows

Heat oven to 350 degrees. Grease 9-inch square baking pan. In small heavy saucepan over low heat, stir butter and unsweetened chocolate until melted and smooth. Remove from heat; cool. Meanwhile, in small bowl combine flour, baking soda and salt, set aside.

In medium-size bowl with electric mixer at medium speed, beat eggs, sugar and vanilla about 3 minutes until lemon-colored and slightly thickened. Beat in cooled chocolate mixture until thoroughly blended; stir in flour mixture to blend well. Spoon batter into prepared pan; bake 25 to 30 minutes until wooden pick inserted in center comes out clean. Cool in pan on wire rack 10 minutes.

Meanwhile, heat broiler. In small heavy saucepan over VERY low heat, stir milk chocolate until melted and smooth; remove from heat. Spread marshmallow topping gently and evenly over top of brownies; drizzle with melted chocolate. Run thin spatula or knife through topping to create marbled effect.