Cream of Broccoli-Cheese Soup

INGREDIENTS

• ½ cup unsalted butter
• 1 yellow onion, finely chopped
• 1/3 cup all-purpose flour
• 4 cups whole milk
• 2 cups half-and-half
• 4 heads broccoli, stems removed and discarded, and florets cut into bite-size pieces
• Pinch of nutmeg
• 12 ounces mild cheddar cheese, shredded (about 3 cups)
• Salt and pepper
• 2 cups vegetable broth