Texas Sheet Cake ...Nice and Easy

There it is....the last piece of a Texas Sheet cake that DH insisted that I make.  The recipe is from one of his favourite cooking shows.  A show that he likes to watch.....and then say...'Why don't you make that??'  I already have a Texas Sheet Cake recipe that I very much like.....but who am I to argue.....Honestly I could have made my usual recipe and he would not know the difference.  But, in the interest of trying a new recipe....I gave it a go.  I can say that I like it equally as much as my previous recipe.  It is very easy to prepare and makes a nice large amount to share.

Cook's Country Texas Sheet Cake
8 oz semi sweet chocolate
4 Tbsp butter
3/4 cup oil
3/4 cup water
1/2 cup cocoa
Melt all above ingredients in a pan over medium heat.  Stir until smooth.....should take 3-5 minutes. Remove from heat and cool a few minutes.

2 cups flour
2 cups sugar
1/2 tsp baking soda
1/2 tsp salt
Mix together all dry ingredients, and pour above chocolate mixture into the dry and whisk together.

2 eggs
2 egg yolks
2 tsp vanilla
1/4 cup sour cream
Whisk together the above 4 ingredients, and stir into the previously mixed ingredients from above.
Spread batter into a greased cookie sheet with sides.  Bake 18-20 minutes at 350F on the middle rack.

Icing
Prepare frosting while cake is in the oven.
1/2 cup cream
1/2 cup butter
1/2 cu cocoa
1 Tbsp corn syrup or golden syrup
1 Tbsp vanilla
3 cups icing sugar

1 cup chopped pecans or walnuts to sprinkle on top if desired.

In a medium pan heat and whisk the first4 ingredients until melted over medium heat.  Remove from heat and add vanilla and whisk in the icing sugar.  Frost cake with icing while the cake and frosting are still warm.  Sprinkle the top of the icing with 1 cup chopped pecans if desired.