Black and White Malted Icebox Cake

Name: Black and White Malted Icebox Cake
Ingredients: 2 Cups all-purpose flour; ½ Teaspoon salt; 1 ¼ Cup granulated sugar; ¾ Cup unsalted butter, at room temperature; 1 Tablespoon pure vanilla extract; 2 Tablespoons whole milk; 1 Tablespoon light corn syrup; 13 Ounces milk chocolate, finely chopped; ¼ Teaspoon salt; ¾ Cup heavy cream; 4 Cups heavy cream; ½ Cup malted milk powder; ½ Cup confectioners sugar; 2 Teaspoons pure vanilla extract; Nonstick cooking spray; Crushed or chopped malted milk balls for decorating