My Family's Favorite Haitian Rice and Beans

Ingredients

• 2 cups long-grain white rice (360g)
• 4 cups water (950ml)
• 1 cup dried black beans (200g), soaked overnight
• 1 tablespoon vegetable oil (15ml)
• 1 medium onion, finely chopped
• 2 cloves garlic, minced
• 2-3 scallions, chopped
• 1 teaspoon ground thyme (5g)
• 1 teaspoon salt (5g)
• ½ teaspoon black pepper (2g)
• ½ teaspoon cayenne pepper (optional) (2g)
• 1 cup dried black mushrooms (Djon Djon) (20g) or shiitake or porcini
• 2 cups hot water (475ml) for soaking mushrooms