The Good Housekeeping Institute use purpose-built domestic kitchens and work with a leading team of home economists and food writers to develop and test the most delicious recipes that are guaranteed to work first time, every time. Every recipe is tested three times before it can leave the GHI kitchens – and all books carry the Tried • Tested • Trusted seal of approval. Aggie MacKenzie is best known for co-presenting the enormously successful TV show How Clean is Your House? which used to air on Channel Gem in Australia. Before that she was head of The Good Housekeeping Institute, where she oversaw the cookery and consumer departments of the magazine. She has a monthly money-wise and tips column in the UK's Good Housekeeping, a tried-and-tested page in the UK's Delicious and regular columns in Sainsbury's Magazine and Best. She has published numerous best-selling books, including HOW CLEAN IS YOUR HOUSE?, TOO POSH TO WASH, THE CLEANING BIBLE and ASK AGGIE: FOR ALL YOUR CLEANING SOLUTIONS.