In this section on Granma’s tips, you’ll find all sorts of traditional domestic tips used by our mothers and grandmothers. They often save time and money, and will surprise you with how inventive and effective they are.Today’s tip:However good you are in the kitchen, I’m sure there’s always the occasional accident resulting in a burnt pot! No need to worry though – and no need to scrub away for hours. Place some chopped onions in the bottom of the pot and pour boiling water on top. Leave this to soak for five minutes, and cleaning will become much easier afterwards.