Zucchini Soup

Ingredients

• 2 tablespoons unsalted butter
• 1 medium yellow onion (diced)
• 2 cloves garlic (minced)
• ¼ teaspoon each of rosemary (thyme, celery salt, black pepper, and salt)
• A pinch of cayenne pepper (optional)
• 5 cups zucchini (chopped into chunks)
• 3 cups chicken broth
• 1 tablespoon soy sauce or Worcestershire sauce
• 2 russet potatoes (about 1 pound total)
• ½ cup half-and-half or heavy cream
• 1 cup cheddar cheese (shredded)