- Stud the onion with the cloves and place it in a saucepan. Add the bay leaf and pour in the milk. Heat gently until just below simmering, then remove from heat and let it infuse for at least 15 minutes 
- Remove the crusts from the bread and tear into small pieces 
- Remove the onion and bay leaf from the milk. Stir in the torn bread and let it soak for about 10 minutes until it softens 
- Stir well, then mash with a fork or whisk to achieve a thick, creamy consistency 
- Stir in the butter, season with salt, white pepper, and a pinch of nutmeg if using