Fufu

Bring 6 cups of water to a rapid boil in a large, heavy pot.

Combine the two ingredients and add to the water.

Stir constantly for 10-15 minutes - a process that needs two people for best results: one to hold the pot while the other stirs vigorously with a strong implement (such as a thick wooden spoon). The mixture will become very thick and difficult to stir, but unless you are both vigilant and energetic, you'll get a lumpy mess.

When the fufu is ready (or you've stirred to the limits of your endurance), dump about a cup of the mixture into a wet bowl and shake until it forms itself into a smooth ball.

Serve on a large platter alongside a soup or stew.