Wat Wah Tat

Ingredients

• 3 tablespoons vegetable oil
• 2 green onions, thinly sliced
• 2 cloves garlic, minced
• 1 garlic scape, chopped
• 1/2 pound extra-firm tofu, cubed
• 1/4 cup fermented black beans
• 1/4 cup mushroom oyster sauce
• 1 cup water
• 1 tablespoon rice vinegar
• 1 tablespoon tamari sauce
• 1/4 teaspoon ground ginger
• 2 cups dried shiitake mushrooms
• 1/2 pound fresh spinach, chopped