Texas Sheet Cake

Name: Texas Sheet Cake
Prep time: 10 min
Cook time: 45 min
Total time: 45 min
Yield: 18 portions
Ingredients: 8 oz unsalted butter; 18 oz all-purpose flour; 14 oz sugar; ½ tsp salt; 1 ½ oz cocoa powder; 8 oz water; 8 oz buttermilk; 2 large eggs; 1 tsp baking soda; 1 tsp vanilla extract; 8 oz unsalted butter; 1 tsp vanilla extract; 3 ½ oz whole milk; 2 oz cocoa powder; 13 oz confectioners sugar; 3 oz chopped pecans