Don't add the half-and-half in the morning or it may curdle; stir it in during the last 20 minutes instead. Taste before salting because ham is salty. Store leftovers in the fridge for up to 4 days or freeze for up to 3 months; reheat gently on the stove with a splash of broth. For a dairy-free version, use full-fat oat milk or coconut milk and plant-based butter.