The way the recipe is written, you need to use cooked chicken. You can pre-cook chicken and shred it or shred a rotisserie chicken in place of canned chicken.

You can certainly swap the canned chicken for rotisserie chicken, but I would keep the cream cheese the same. It will still cook with one block instead of two, but won’t be as thick or creamy.

You can really use any size you like of the canned chicken. If you use more, it will be a thicker “dip.”

Great question, and yes, it will still turn out. Stirring just helps everything melt together a little more evenly, but the dip will cook just fine without it. When you get back, just give it a good stir before serving to smooth everything out. Enjoy the dip!