-
Cut celery stalks into 3- to 4-inch pieces. Stir chicken stock into hot water; stirring until dissolved
-
Pour 1 cup chicken stock into blender or food processor. With blender running, gradually add half the celery and onion pieces; puree until smooth. Repeat with remaining 1 cup chicken stock, celery and onion. Set aside.
-
In large skillet, cook coarsely crumbled sausage until no longer pink (do not overcook; sausage continues to cook as dressing bakes.) remove sausage from skillet; reserving drippings.
-
Saute mushrooms in drippings until softened (about 5 minutes); drain. In same large skillet, melt butter over medium heat; add celery mixture. Bring to a boil; reduce heat and simmer, uncovered, 15 minutes, stirring occasionally.
-
In large bowl, combine crackers and celery mixture; blend until crushed crackers are moistened. Fold in sausage and mushrooms. Spoon into lightly greased 3-quart baking dish.
-
Bake, uncovered, in a preheated 350 F oven until mixture is lightly browned and registers 165 F (45 to 50 minutes). Garnish with parsley.