Peel the cassava and cut it into chunks.
Rinse the cassava chunks under cold water.
Place the cassava chunks in a large pot and cover with water.
Add the salt and bring to a boil over high heat.
Reduce the heat to medium and simmer for about 20-30 minutes, or until the cassava is tender and easily pierced with a fork.
Drain the cassava chunks and return them to the pot.
If desired, add butter or coconut oil and gently toss to coat.
Enjoy your meal!