I first encountered this surprisingly delicious dish when I worked in Tunisia many years ago.
Serves 6
1 lb (450 g) potatoes
11/2 lb (700 g) carrots
2 cloves garlic, chopped
4 tsp cumin
3 tbs olive oil
2 tbs wine vinegar
salt, large pinch of cayenne coriander leaves to garnish
Peel the vegetables and cut them into pieces.
Put them in a pan with the salt, garlic and water to cover then boil until soft.
Drain and mash, then stir in the rest of the ingredients.
Garnish with coriander leaves, and serve cold with hot pitta bread.