Cooking dried bamboo requires a process of rehydration to make it tender and suitable for consumption. Here's a step-by-step guide on how to cook dried bamboo:

1. Soaking the Bamboo:
• Place the dried bamboo in a large bowl or pot.
• Fill the bowl or pot with enough water to fully submerge the bamboo.
• Allow the bamboo to soak for at least 2-3 days, changing the water every 8-12 hours. This helps to remove any impurities and rehydrate the bamboo.
2. Preparing the Bamboo for Cooking:
• After soaking for a few days, the bamboo should have absorbed enough water and become pliable.
• Remove the bamboo from the water and rinse it thoroughly to wash away any remaining impurities.
3. Cooking the Bamboo:
• Cut the rehydrated bamboo into desired lengths or slices.
• Place the bamboo in a large pot or saucepan and add enough water to cover it.
• Optionally, you can add some flavorings such as salt, garlic, or other spices to enhance the taste.
• Bring the water to a boil over medium-high heat, then reduce the heat to low and let it simmer.
• Allow the bamboo to cook for about 1-2 hours or until it reaches the desired tenderness. Check the texture occasionally to avoid overcooking.
• If you prefer a softer texture, you can continue simmering the bamboo for a longer duration.
4. Final Preparation:
• Once the bamboo is cooked to your desired tenderness, drain the water.
• At this point, you can use the cooked bamboo in various recipes such as stir-fries, soups, or salads.
• If you plan to use it later, let it cool and store it in an airtight container in the refrigerator for up to several days.

Remember, the cooking time may vary depending on the specific type and thickness of the dried bamboo. It's always a good idea to check the tenderness periodically and adjust the cooking time accordingly.