Here you will find more detailed information on ingredients used in this book and where you can find them. As I am Polish, and there are many Polish shops in the UK, I tend to recommend trying them first — partly out of convenience, and partly because I know they will stock the majority of items needed — but I imagine other Eastern European food stores would also have the same things or an equivalent. Note that although you can often buy many of these ingredients from the ‘world foods’ section of larger supermarkets, their range and stock levels can be erratic.