Sausage Kale Soup

Bahan-bahan (10 porsi)

• 1 & 1/2 pounds Italian sausage ((I like mild))
• 1 large onion (chopped)
• 1/4 to 1/2 teaspoon crushed red pepper
• 2 teaspoons kosher salt
• 4 cloves garlic (smashed and minced)
• 2 tablespoons flour
• 4 cups chicken broth
• 3 cups whole milk
• 2 pounds russet potatoes (sliced)
• 1 large bunch kale (about 5 cups)
• 2 cups heavy cream
• 1/2 cup Parmesan cheese (shredded)
• Salt and pepper to taste
• more shredded Parmesan (to garnish)