I have been making this chocolate sheet cake for years.  The recipe is so simple and the finished product is delicious.   If you need to make a quick dessert, this is the one to try.

2 cups sugar

2 cups flour

½ cup buttermilk

1 teaspoon baking soda

2 eggs

½ teaspoon salt

1 teaspoon vanilla

2 sticks margarine

4 tablespoons cocoa

1 Cup hot water

Frosting or Topping

1 stick margarine or butter

4 tablespoons cocoa

6 tablespoons buttermilk

1 pound box powdered sugar

1 teaspoon vanilla

1 cup nuts (chopped walnuts or pecans)

Cake:

Melt margarine, add cocoa and hot water.  Bring to a rapid boil.  Pour over dry ingredients.  Add buttermilk, eggs, and vanilla.  Bake in large cookie sheet (greased) for 15-20 minutes at 350 F.

Frosting:

Melt margarine or butter, add cocoa and buttermilk.  Bring to a boil; add powdered sugar, vanilla, and 1 cup nuts.  Mix thoroughly and place on cake while warm.  When cool, cut in bars.