Coconut White Texas Sheet Cake

Name: Coconut White Texas Sheet Cake
Prep time: 10 min
Cook time: 30 min
Total time: 40 min
Cuisine: American, Southern
Ingredients: 1 cup (2 sticks) unsalted butter; 1 cup water; 2 cups granulated sugar; 2 eggs, beaten; 1/2 cup sour cream; 3 teaspoons coconut extract; 2 cups all-purpose flour; 1/2 teaspoon salt; 1 teaspoon baking soda; 3 cups sweetened flaked coconut; 1/2 cup (1 stick) unsalted butter; 1/4 cup whole milk; 4 to 4 1/2 cups powdered sugar; 1 1/2 teaspoons coconut extract