chocolate sheet cake

Ingredients For chocolate sheet cake

• 2 c

  sugar
• 1/2 tsp

  salt
• 2 c

  all purpose flour
• 1 stick

  butter
• 1/2 c

  vegetable oil
• 1 c

  water
• 1/4 c

  cocoa powder
• 2

  eggs
• 1 tsp

  baking soda
• 1/2 c

  buttermilk
• 1 tsp

  vanilla
• ICING:
• 1 stick

  butter
• 3 Tbsp

  cocoa powder
• 6 Tbsp

  milk
• 1 tsp

  vanilla
• 16 oz

  box of powdered sugar
• 1 c

  chopped pecans or walnuts