Instruct: Classify the given Amazon review as either positive or negative.
Query: Bad recipes

I bought this book and was very excited when I read about the author's background and list of dim sum items. When I started making some of the recipes, I realized that the recipes were a joke. It is well known that dim sum chefs will not truly tell all the methods/secrets of making the items and this is true with this book. I have a culinary background and my grandmother knows how to make some of these dishes. It seems as if the author purposely left out the correct ingredients or had incorrect measurements. I tried the black sesame roll. When my mother read the recipe, she laughed and said that he left out the most important ingredient:rice flour. Without it, it's just sludge. I tried making the steamed buns and they weren't successful. I won't even try to make his radish cake because I think my grandmother's is the best. Don't buy this book, you'll have better success searching the internet for recipes that are better written.