Marble Marshmallow Brownies - cooking recipe

Ingredients

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

Preparation

Heat oven to 350\u00b0.
Grease 9-inch square baking pan.
In small heavy saucepan over very low heat, stir butter and unsweetened chocolate until melted and smooth.
Remove from heat, cool.