White Texas Sheet Cake

Ingredients (17)

• Cake:
• 2 cups all-purpose flour
• 2 cups granulated white sugar
• 1 teaspoon baking powder
• 1 teaspoon salt
• 1/4 teaspoon baking soda
• 2 large eggs
• 1/2 cup sour cream
• 1 teaspoon vanilla extract
• 1 cup (2 sticks) butter,
• 1 cup water
• Frosting:
• 1/2 cup (1 stick) butter,
• 1/4 cup milk
• 1/2 teaspoon vanilla extract
• 4 cups powdered sugar
• 1 cup chopped walnuts