Fudge Brownie Pie

3/4 c. SR flour
1 c. sugar
1/4 c. cocoa, sifted
4 oz. butter, melted
2 eggs, beaten
2 t. vanilla
1/2 c. chopped pecans, optional
2 handfuls mini marshmallows
Frosting:
2 oz. butter, melted
1 oz. cocoa, sifted
2 oz. evaporated milk
1 c. powdered sugar, sifted

Preheat oven to 350. Spray a 9" spring form pan and set aside. Whisk together flour, sugar, & cocoa. Add beaten eggs, melted butter, and vanilla. Mix until smooth. Stir in nuts if using. Pour into pan. Bake on middle rack for 25-30 minutes, until toothpick comes out clean. Immediately sprinkle the marshmallows on top. Return to oven to melt the marshmallows. Combine frosting ingredients until smooth and thick. Remove brownies from oven and carefully spread the chocolate frosting on top. Cool completely. Cut into wedges to serve.