Mornay Sauce

Ingredients (11)

• 1½ cup whole milk
• ½ large onion
• 2 bay leaves
• 4 cloves
• Pinch nutmeg
• 2 tbsp unsalted butter
• 2 tbsp all-purpose flour
• ¼ cup Gruyere cheese
• 2 tbsp Parmesan cheese
• ¼ tsp salt
• ¼ tsp white pepper