1
Wash the sweet potatoes and cut them into 1 cm thick fries. Leave the skin on for extra flavour!
2
Heat some sunflower oil in a frying pan and deep-fry the fries until they are nicely browned on all sides. After frying, place them on a plate lined with kitchen paper and sprinkle with sea salt to taste. Serve with a slightly sour (homemade) mayonnaise.
3
To prepare the mayonnaise, mix all ingredients except the peanut oil in a mixing bowl. Whisk the peanut oil into the mixture in a steady, thin stream until the mayonnaise starts to thicken. Gradually increase the oil stream until it is fully incorporated. Season with salt and pepper to taste.