Devil's Food Cake

Name: Devil's Food Cake
Prep time: 20 min
Cook time: 33 min
Total time: 53 min
Cuisine: American
Ingredients: 1 cup unsalted butter; ½ cup whole milk; 1 cup water; ¾ cup Dutch-process cocoa powder; 1 teaspoon instant coffee (optional, see note); 2 cups all-purpose flour; 1 cup granulated sugar; 1 cup light brown sugar (firmly packed); 1 ½ teaspoons baking soda; 1 teaspoon baking powder; 1 teaspoon salt; ¾ cup sour cream; 2 large eggs (room temperature preferred); 2 teaspoons vanilla extract; 1 batch chocolate frosting (or your favorite frosting)