Broccoli Cheese Soup

It was just that kind of day. A big pot of homemade soup on a rainy, dreary day really hits the spot. Everyone in our family loves broccoli except Ryan. It's probably his least favorite food. Sorry Ryan, it just sounded too good to pass up today. Plus, I had broccoli that needed used up in the fridge!

2 tbsp butter
1/2 - 1 cup chopped onion
3 cups chicken broth
1 cup milk
5-6 potatoes, peeled and cut into cubes
2 cups broccoli florets, cooked in the microwave until crisp-tender
1 cup diced ham
1 1/2 cups shredded cheddar
1/4 cup sour cream
3 tbsp cornstarch, to thicken
pepper

In a large dutch oven, saute onions in butter. Add the chicken broth, milk, and potatoes. Bring to a boil, reduce heat and cook until potatoes are tender.
Using a masher, mash the potatoes in the pot until most are smooth. (this helps to thicken the soup) Add broccoli and ham. Stir in the shredded cheese; stir until cheese melts. Add the sour cream and stir until mixed in.
At this point I add a little cornstarch mixed with cold water to the bubbly soup. I like my soup thick! This is optional.
Season with a little pepper.