Indulge in Ouma Condense Milk Rusks. Sweet and appetizing and undoubtedly creamy. A tasty treat, perfect for breakfasts, tea times, work breaks and just before bed snacks. With thanks to the Boer trekkers, who discovered a crunchy, tasty, long lasting snack that would stay fresh while they travelled from the Cape to the Transvaal. Rusks have since been an essential in South African households. Ouma Rusks, the convenient and delicious snack.