Sounds like regular sage dressing without celery and onion. Usually this is made with dried bread cubes (which
equals toasted bread), spices including sage, salt and pepper, poultry seasoning, and moistened with melted
butter (lots) poured over, or a combo of butter and chicken or turkey broth (which equals the butter on the
toast in the dressing you liked). I use the broth made by boiling down the giblets from the turkey.

It shouldn't be difficult for you to replicate it. It isn't rocket science. I, myself, would include some diced onion.

N.