In a large bowl sift together 2 cups of sugar and 2 cups of flour
In a sauce pan over moderate heat add 1 stick of butter and 3 1/2 Tablespoons of cocoa and 1 cup of water.
Bring to a boil and pour over your flour mixture and mix together on a low speed.
Next add 1/2 cup of butter milk, 1 teaspoon of soda, 2 eggs, 1 teaspoon of cinnamon, 1 Tablespoon of Mexican Vanilla. Continue to mix until it is all combined.
Grease a 9 x 12 Pyrex dish and pour the mixture into the pan.
Bake this at 400 degrees for 20 to 30 minutes until it passes the toothpick test and comes out clean.
Heat 1 stick of butter over stove top with 3 1/2 Tablespoons of Cocoa, 6 Tablespoons of Milk and bring to a boil.
Add 1 box or 16 ounces of Powder Sugar, 1 Teaspoon of Vanilla, 1 Cup of Chopped Pecans. Mix well.
After the cake is out of the oven and is still warm you will poke a holes with a toothpick here and there in the cake so the icing will sink though it. With the warm cake you will pour the icing on top spreading to cover the entire top.
Let the cake set and get to room temperature before you serve!