Wash your beans thoroughly and cook to very soft. You can use a small pistle to smash to get the paste or broom like you see in the pix

Then peel your yam and cook on gas and prepare your your pounding mortal and in 15mins, your yam may be ready for pound.

Then start the seive your Smashed beans and pour in a pot. Heat up gas and start to spice

Add oil and salt, then stir and allow to cook. The allow to thicken. In 10min, if should be ready to serve with your stew