Texas Sheet Cake

1 . Stage

Preheat the oven to 350 degrees F (175 degrees C). Grease and flour a 10x15-inch jelly roll pan.

2 . Stage

Make cake: Combine flour, sugar, baking soda, and salt in a mixing bowl. Beat in sour cream and eggs.

3 . Stage

Melt butter in a saucepan over low heat. Stir in water and cocoa powder. Bring mixture to a boil then remove from the heat. Allow to cool slightly, then stir cocoa mixture into the flour and egg mixture until blended. Pour batter into the prepared pan.

4 . Stage

Bake in the preheated oven until a toothpick inserted into the center comes out clean, about 20 minutes.

5 . Stage

While the cake is baking, make icing: Combine milk, cocoa powder, and butter in a large saucepan over medium heat. Bring to a boil, then remove from heat. Stir in confectioners' sugar and vanilla, then fold in walnuts, mixing until blended.

6 . Stage

Spread icing over warm cake. Yoly