Mix sugar and flour in bowl and whisk to smooth out lumps in flour.

In saucepan, bring to a boil: margarine,

water, cocoa and oil. Pour slowly over dry ingredients in bowl mixing continually with mixer to avoid lumps.

Add buttermilk, salt, soda, vanilla and eggs and mix well. Bake

in 13x9 pan sprayed with Pam at 400 degrees for 30 minutes or until done

in middle.

In saucepan, bring margarine, buttermilk, and cocoa to a boil. In a bowl,

pour hot mixture over sugar, vanilla and nuts, if desired. Mix well and cool about 5

minutes. Spread on hot cake.