Hashbrown Potato Casserole No Cream Soup

Name: Hashbrown Potato Casserole No Cream Soup
Prep time: 12 min
Cook time: 40 min
Total time: 52 min
Cuisine: American
Ingredients: 3 tablespoons butter; ¼ cup onions (diced); 3 tablespoons all-purpose flour; 1 and ½ cups chicken broth; 1 cup whole milk; 1 and ½ teaspoon salt; ¼ teaspoon freshly ground black pepper; 26 ounce hashbrowns (frozen but thawed); ¼ teaspoon dried thyme; 2 cups cheddar cheese (shredded); ½ cup sour cream; 1 and ½ cup potato chips (crushed, I used this brand)