Traditional Chocolate Sheet Cake

• 1 cup butter, room temperature
• 1 cup water
• 13 cup cocoa powder
• 2 cups sugar
• 2 cups flour
• 1 pinch salt
• 2 eggs
• 1 teaspoon baking soda
• 12 cup sour cream
• 1 teaspoon vanilla extract
• 12 cup butter, room temperature
• 13 cup cocoa powder
• 13 cup milk
• 1 (16 ounce) box powdered sugar, sifted
• 1 teaspoon vanilla extract

1. Preheat oven to 350 degrees.
2. Grease a 15 x 10 x 1 inch Jelly Roll pan, set aside.
3. Sift together flour, baking soda and salt.
4. In a saucepan combine butter, water and cocoa.
5. Heat until butter is melted.
6. Remove from heat, add in sugar, eggs, sour cream and vanilla, blending well.
7. Carefully whisk in flour a little at a time, making sure there are no lumps.
8. Pour batter into jelly roll pan, spreading batter to all sides and corners.
9. Bake for 20 minutes or until toothpick comes out clean.
10. For the icing:.
11. Combine butter, cocoa and milk in saucepan, bring to a boil.
12. Remove from heat and add in vanilla and powdered sugar.
13. Mix well.

butter, water, cocoa powder, sugar, flour, salt, eggs, baking soda, sour cream, vanilla, butter, cocoa powder, milk, powdered sugar, vanilla

Taken from www.food.com/recipe/traditional-chocolate-sheet-cake-498795 (may not work)