Storage: This soup keeps well in the refrigerator for up to 3 days. Reheat gently on the stove, adding a splash of water or milk if it has thickened too much.
Substitutions: For a vegan version, substitute the milk with unsweetened almond, oat, or soy milk. The vinegar helps brighten the flavor regardless of the milk choice.
Variations: While the original recipe suggests a pressure cooker for speed, slow simmering allows the flavors to meld deeply. You can also add a pinch of nutmeg or black pepper for extra warmth.
Tip: Ensure the soup is not boiling when you add the milk to prevent curdling, especially if using dairy milk.