Slaphakskeentjies (sweet-and-sour onions)

1. Place the onions in a large bowl and pour over boiling water to cover them. Allow to cool then, when you are able to, slip the onions out of their skins, keeping them whole and the root intact. Use a sharp knife to clean up the root.
2. Boil the onions in lots of salted water until tender. Drain in a colander and set aside to cool in a salad bowl.
3. Meanwhile, whisk the eggs well and pour into the top of a doubleboiler over gently simmering water. Add the sugar, vinegar, water, lemon zest and mustard powder and stir with a wooden spoon until the sugar has dissolved and the mixture has thickened like a custard. Remove from the heat and season to taste with salt and pepper. Pour the hot sauce over the onions. Cover and allow to cool. Garnish with parsley before serving.
This is an extract with permission from Michael Olivier’s book Friends. Food. Flavour. Great South African Recipes. It is published by Penguin Random House South Africa and retails for R400.
Find more allium recipes here.
Photograph: Mike Robinson
Illustrations: Roelien Immelman