Panera Broccoli Cheese Soup

INGREDIENTS

• 1 tablespoon melted butter
• 1/2 medium chopped onion
• 1/4 cup melted butter
• 1/4 cup flour
• 2 cups half-and-half cream
• 2 cups chicken stock
• 1/2 lb fresh broccoli
• 1 cup carrot, julienned
• 1/4 teaspoon nutmeg
• 8 ounces grated sharp cheddar cheese
• salt and pepper