Heston’s South African Lemon Tart : Heston Blumenthal is seen in South Africa advising that it is the 6th anniversary of the Waitrose Foundation there. He describes the work of the foundation in providing funds for farm workers, and notes that the Cape has perfect conditions for growing lemons, then demonstrates the preparation and cooking of a lemon tart. The narrator advises that the recipe card is available at Waitrose, and that there is a third off the ingredients. A sub-title notes that the offer ends 15th June.