Vegan Chocolate Coconut Cake

Name: Vegan Chocolate Coconut Cake
Cuisine: American
Ingredients: 2 cups nondairy milk; 1 tablespoon apple cider vinegar; 2 ½ cups unbleached white flour; ⅔ cup cocoa powder; ½ tablespoon baking soda; 1 teaspoon baking powder; ⅔ cup sunflower oil; 1 ½ cups organic sugar; 2 teaspoons vanilla extract; ¾ cup vegan butter or margarine; ¾ cup organic palm shortening; 1 tablespoon vanilla extract; 6 cups organic powdered sugar; up to 2 tablespoons nondairy milk (optional, to achieve a creamy consistency if needed); vegan food coloring (optional, but I used Color Kitchen); 6 ounces vegan chocolate chips; 4 ounces nondairy milk