Creamed Spinach

Ingredients (9)

• 4 packages (10 ounces each) fresh spinach, trimmed
• 2 tablespoons butter
• 2 medium onions, finely chopped
• 3 tablespoons all-purpose flour
• 1 teaspoon salt
• 1/2 teaspoon white pepper
• 2 cups whole milk
• 1/2 cup heavy whipping cream
• 1/2 cup grated Parmesan cheese