Texas Sheet Cake Recipe with Chocolate Frosting

Ingredients

• 3 teaspoons all-purpose flour
• 3 cups all-purpose flour
• 3 cups white sugar
• 1 1/2 teaspoons baking soda
• 1 1/2 teaspoons ground cinnamon
• 1/2 teaspoon salt
• 1 cup of water
• 3/4 cup (1 1/2 sticks) butter
• 1/3 cup Dutch-processed cocoa
• 3/4 cup buttermilk
• 1 1/2 teaspoon pure vanilla extract
• 3 large eggs