Chicken and Gnocchi Soup

INGREDIENTS

• 1/2 cup unsalted butter
• 3/4 cup celery, chopped fine
• 3/4 cup onion, chopped fine
• 1/2 cup carrot, grated very fine and chopped
• 1 1/2 teaspoons garlic, minced
• 1/3 cup all-purpose flour
• 3/4 cup heavy cream
• 3/4 cup milk
• 4 cups chicken broth or 4 cups fresh chicken stock
• 1 1/2 cups cooked chicken (white meat works best)
• 3/4 cup fresh spinach, julienne cut
• 16 ounces gnocchi (potato dumpling)
• 1/2 teaspoon dried rosemary
• 1/4 teaspoon black pepper
• 1/4 teaspoon white pepper
• 1/2 teaspoon salt