To add a new carousel item in ingredients block, copy/paste a slide item and set the paths to your images
<div class="item"> <a class="fancybox ingredients-img" rel="gallery1" href="Large image path"> <img src="Small image path" alt=""> </a> <a class="fancybox ingredients-img" rel="gallery1" href="Large image path"> <img src="Small image path" alt=""> </a> </div>