Boiled mushrooms are a great thing to have with different meals or on their own. They are a great natural snack option. When it comes to how to boil mushrooms, you just need to follow a simple process step by step. The only ingredients you require are water, salt, black peppercorns, bay leaves, and the mushrooms. Simply add the salt, bay leaves and peppercorns to the water and bring the water to boiling point. While you are doing the first boiling step, peel the mushrooms, and then add them to the already boiled water. Boil for a further five minutes, then take your mushrooms out and serve them.