The Best Chocolate Cake You Ever Ate

Preheat oven to 375 degrees F (190 degrees C). Grease and flour one 9 x 13 inch pan.
Sift 2 cups white sugar and 2 cups flour together; set aside.
In a sauce pan; combine 1/2 cup butter or margarine, oil, water, and 1/4 cup cocoa. Bring mixture to a boil, remove from heat and add to dry ingredients.
Dissolve baking soda in buttermilk; add with eggs, salt, cinnamon and 1 teaspoon vanilla to cocoa, flour mixture and stir well.
Pour batter into a 9 x 13 inch pan. Bake at 375 degrees F (190 degrees C) for 20 minutes.
To Make Frosting: Five minutes before cake is done combine 1/2 cup butter,1/4 cup cocoa and 1/4 cup milk in saucepan and bring to a boil.
Remove from heat and stir in confectioners' sugar, 1 teaspoon vanilla, and chopped pecans. Pour frosting over hot cake. Cake remains moist and may be frozen. Serves 20.