Ingredients: 100g Hericium erinaceus (or monkey head mushroom), 100g black beans, 100g cashew nuts, 200g corn on the cob, 30g dried longan
Seasonings: 1-2 tsp. sea salt
Steps：
- Soak black beans for 3 hours. Soak the mushrooms in cold water for 30 minutes. Drain and put aside.
- Cut corn into 1 inch thick pieces.
- Pour in 20 bowls of water and bring to the boil. Add all ingredients and boil with high heat for 15 minutes, turn to medium heat and cook for 45 minutes. Turn to low heat and simmer for 1 hour. Turn off heat. Season with salt and serve.
Tips：
- To ensure better taste, add 0.5 tsp. cooking oil into cold water before turning on heat.
