Fudgy Chocolate Stout Cake

Name: Fudgy Chocolate Stout Cake
Ingredients: Cooking spray; 1 1/2 cups all-purpose flour; 1 cup granulated sugar; 1/4 cup plus 3 tablespoons cocoa powder (not Dutch-processed); 1/2 teaspoon baking soda; 1/2 teaspoon kosher salt; 1/2 cup espresso or strong coffee; 1/2 cup Guinness Stout (not vegan) or Lagunitas Imperial Stout (vegan); 1/4 cup water; 2 teaspoons vanilla extract; 1 teaspoon apple cider vinegar or distilled white vinegar; 1/2 cup (scant) vegetable oil; Powdered sugar, for dusting (optional)