Mom'S Sour Cream Chocolate (Sheet) Cake - cooking recipe

Ingredients

2 cups sugar
1/2 cup butter
1 cup sour cream
1/2 cup cocoa
2/3 cup boiling water
2 cups flour, divided
3 eggs, unbeaten
1 teaspoon baking soda
1 cup pecans (optional) or 1 cup walnuts (optional)

Preparation

Preheat oven to 350 degrees F.
Dissolve cocoa in the boiling water.
Dissolve soda in a little water.
Cream sugar and butter.
Add sour cream to sugar and butter, mix, then add cocoa and water and mix.
Add 1 C flour, the eggs, the other C of flour, then water with soda.
Mix well.
Pour into 8\"x13\" sheet pan.
Bake at 350 F for about 1/2 hour to 40 minutes.