Crafting recipe with skull

I am trying to add a crafting recipe that uses a skull, but Its not working in game.

Can anyone help?

My code:

Code:

        public void addRecipes(){
            //-------------Gold Head--------------
            ItemStack gh = getGoldHead("§6Gold Head", "Eat to regain health!");
            ShapedRecipe ghr = new ShapedRecipe(gh).shape("000", "010", "000");
            ghr.setIngredient('0', Material.GOLD_INGOT);
            ghr.setIngredient('1', Material.getMaterial(397));
            getServer().addRecipe(ghr);
        }