- Special Savings
- 2 tablespoons unsalted butter
- 2 pounds broccoli, florets roughly chopped into 1-inch pieces, stems trimmed, peeled, and cut into 1/4-inch-thick slices
- 1 medium onion, roughly chopped (about 1 cup)
- 2 medium garlic cloves, minced or pressed through garlic press (about 2 teaspoons)
- 1 1/2 teaspoons dry mustard powder
- Pinch cayenne pepper
- Table salt
- 3-4 cups water
- 1/4 teaspoon baking soda
- 2 cups low-sodium chicken broth
- 2 ounces baby spinach (2 loosely packed cups)
- 3 ounces sharp cheddar cheese, shredded (3/4 cup)
- 1 1/2 ounces Parmesan cheese, grated fine (about 3/4 cup), plus extra for serving
- Ground black pepper
Heat butter in large Dutch oven over medium-high heat. When foaming subsides, add broccoli, onion, garlic, dry mustard, cayenne, and 1 teaspoon salt. Cook, stirring frequently, until fragrant, about 6 minutes. Add 1 cup water and baking soda. Bring to simmer, cover, and cook until broccoli is very soft, about 20 minutes, stirring once during cooking.
Add broth and 2 cups water and increase heat to medium-high. When mixture begins to simmer, stir in spinach and cook until wilted, about 1 minute. Transfer half of soup to blender, add cheddar and Parmesan, and process until smooth, about 1 minute.
Transfer soup to medium bowl and repeat with remaining soup. Return soup to Dutch oven, place over medium heat and bring to simmer. Adjust consistency of soup with up to 1 cup water. Season to taste with salt and pepper. Serve, passing extra Parmesan separately.
Recipe reprinted by permission of America's Test Kitchen. All rights reserved.
Don't Miss Out
Get an instant coupon for 10% off your next order*
plus the latest recipes, exclusive offers, and more straight to your inbox.
*Some restrictions apply.
Sorry, it appears that you already have subscribed to Cooking.com e-mails.
Click here to modify your email preferences.Close
Sign-up in progress...
Thanks for subscribing and please enjoy the coupons, recipes and special offers coming your way!Close
Your instant coupon code is:
Enter code during checkout to receive 10% off your purchase.* This code will also be emailed to you.Close and Continue
*Some restrictions apply. To see restrictions, click here .