Frosted Fudge Brownies

I got this recipe from a former neighbor. I bought some at their bake sale & then asked for the recipe. They are so moist & yummy!

1 C plus 3 T butter or margarine
3/4 C baking cocoa
4 eggs
2 C sugar
1 1/2 C flour
1 tsp baking powder
1 tsp salt
1 tsp vanilla

In a saucepan, melt butter. Remove from heat. Stir in cocoa; cool. In a mixing bowl, beat eggs and sugar. Combine flour, baking powder & salt; gradually add to egg mixture. Stir in vanilla & the cooled chocolate mixture; mix well. Spread into a greased 9x13 pan. Bake at 350 degrees for 25-28 min.

Frosting:
6 T butter or margarine, softened
2 2/3 C confectioner's sugar
1/2 C cocoa
1 tsp vanilla
1/4-1/3 C milk

In a mixing bowl, cream butter, confectioner's sugar, cocoa & vanilla. Add enough milk until frosting achieves spreading consistency. Spread over brownies.