Hi Matti! Glad your family liked it, it's the only way I make it now.
I've always added leftover cooked rice to my dressing, so I throw that in as well.

Slow-Cooker Stuffing/Dressing

1 cup butter or margarine
2 cups chopped onion
2 cups chopped celery
1/4 cup chopped fresh parsley
12 cups dry bread cubes
1 teaspoon poultry seasoning
1 1/2 teaspoons dried sage
1 teaspoon dried thyme
1/2 teaspoon dried marjoram
1 1/2 teaspoons salt
1/2 teaspoon ground black pepper
4 1/2 cups chicken broth, or as needed
2 eggs, beaten

Melt butter or margarine in a skillet over medium heat. Cook onion, celery, and parsley in butter, stirring frequently.
Spoon cooked vegetables over bread cubes in a very large mixing bowl. Season with poultry seasoning, sage, thyme, marjoram, and salt and pepper. Pour in enough broth to moisten, and mix in eggs.

Spray slow-cooker with non-stick spray and transfer mixture to slow cooker.
Cook on High for 45 minutes, then reduce heat to Low, and cook for 4 to 6 hours.

My family loved it! Also nice to have freed up space in the oven. Thanks again!

Jasdip, I am so making this for Thanksgiving. Thanks!