-
Place nyimo in a bowl and use a fork to mash them. Keep mashing until they're mostly broken up, but still have some whole nyimo visible. Add the breadcrumbs, onion, egg, chilli powder, salt, pepper, parsley and peri-peri sauce. Stir until everything is combined, then let the mixture sit for 5 minutes.
-
Heat a tablespoon or two of olive oil with an equal amount of butter in a skillet over medium-low heat. Form the nyimo mixture into patties.
-
Place the patties in the skillet and cook them about 5 minutes on the first side. Flip them to the other side, place 2 slices of cheese onto each patty, and continue cooking them for another 5 minutes, or until the burgers are heated through.
-
Grill the buns on a griddle with a little butter until golden. Spread the buns with mayonnaise and hot sauce, then place the patties on the buns. Top with lettuce, onion and tomato, then pop on the lids!