Panera's Cream Cheese Potato Soup

I bought a large bag of potatoes from Sam's Club and had to use them up.  I searched online for soup recipes using potatoes.  I found this one.  It is very good.  I blended it all, leaving very few chunks.  You could probably shred potatoes with a cheese grinder but it seemed like a lot of work.  Grab some bread and enjoy this heavy but good soup.

 4 cups chicken broth
4 cups peeled and cubed potatoes
1/4 cup minced onion
1/2 teaspoon seasoning salt
1/4 teaspoon white pepper
1/4 teaspoon ground red pepper
1 (8 ounce) packages cream cheese, cut into chunks

Combine broth, potatoes, onion, and spices.
Boil on medium heat until potatoes are tender.
Smash a few of the potatoes to release their starch for thickening.
Reduce to low heat.
Add cream cheese.
Heat, stirring frequently, until cheese melts.