1. Melt butter in a frying pan. Cook onion and celery until tender. Stir in apple and Seasoning.
2. Add water and bring to a quick boil. Remove from heat.
3. Pour over breadcrumbs and quickly stir in. Season with Sea Salt and Black Pepper.
4. Spoon stuffing into a lightly buttered oven-proof casserole dish. May be covered and stored in the refrigerator for up to 2 days.
5. To bake, place casserole in a preheated 350° F (175° C) oven for 35–40 minutes.