This dressing recipe tastes like traditional stuffing but with some added flavors that will leave the guests asking "What is this that tastes so good?" You must use Granny Smith apples or the flavors will not mingle properly.
Spread bread cubes out on 2 rimmed baking sheets and toast in a 350 degree oven until dried out and slightly crisp (10-15 minutes). Set aside.
In a large skillet, melt butter over medium heat. Add onions and celery and cook, stirring occasionally, until very soft but not browned, about 7 minutes. Add apples and leeks and cook for a few minutes longer until apples are crisp tender. Add sage, thyme, and bouillion, stir and cook for a minute longer, then remove from heat.
Transfer onion/ apple mixture to a very large mixing bowl, add chopped bacon and bread cubes, and toss well. Add 2 cups of chicken broth, toss well, then add more broth, a little at a time until the stuffing is well-moistened, but not soggy. Taste and add a bit of salt, if desired.
Pour stuffing into greased casserole dishes (mine fit into one 9x12 dish, but you can divide if necessary). Cover with foil and bake at 375 degrees for about 30 minutes. Uncover and bake an additional 20 minutes, or until the top is golden brown.