Crispy's Tea Rusk is a double-baked treat. Traditionally considered an ideal dip 'n eat accompaniment with a hot cup of tea or a glass of milk. Our round variety, sold in green packages, offer rusks that are round in form as opposed to oblong slices. These rusks are super crunch which is perfect to dunk in tea. Crispy's Tea Rusk is a baked treat. These wheat flour biscuits are known as Tea Rusks, and are crispy and crunchy biscuits that are similar to a piece of toasted bread. Trans fat free. Cholesterol free. Vegetarian. No egg. Chai-time is not complete without delectable chai-time snacks - like the one in this package. Rusks do have some iron in them and added vitamins, but not a huge amount.