Slow Cooker Broccoli Cheese Soup

INGREDIENTS

1/3 cup

butter (, sliced)

1 1/2 cups

chopped yellow onion

2 cloves

garlic (, minced)

6 tbsp

all-purpose flour

Salt and freshly ground black pepper

2 12 ounce cans

evaporated milk

5 cups

low-sodium chicken broth

5 cups

small diced broccoli florets*

1/8 tsp

dried thyme

1/2 cup

heavy cream

12 oz

sharp cheddar cheese (, freshly shredded (or more to taste))

2 oz

parmesan cheese (, freshly & finely shredded)