Mom's Brownies (Betty Crocker's "Fudgy Brownies")

BROWNIES:
2 squares (1 ounce each) unsweetened chocolate
1/2 cup margerine or butter
1 cup sugar
2 eggs
1 tsp. vanilla
1/2 cup all-purpose flour
1/4 tsp. salt
1/2 cup chopped nuts

1. Heat oven to 350 degrees
2. Heat chocolate and butter/margarine in 2-quart saucepan over low heat, stirring constantly, until melted; remove from heat.
3. Mix in sugar, eggs and vanilla.  Stir in remaining ingredients.
4. Spread in greased square pan, 9x9x2 or oblong baking dish, 12x7 1/2x2 inches.
5. Bake 20-25 minutes, until brownies begin to pull away from sides of pan. 
6. Cool slightly; cut into about 2-inch squares.  Frost if desired.

BROWNIE FROSTING:
2 squares chocolate
3 T. margarine
1 T. butter
1 1/2 cup powdered sugar
1 tsp. vanilla
Evaporated milk

1. Melt the chocolate, margarine, and butter together.
2. Stir in the vanilla, and then the powdered sugar (gradually).
3. Add evaporated milk until it looks like the correct consistency (do this gradually, as well, because once you add too much, it is hard to bring it back to "normal").