If you make Qifeng cake or sponge cake, you can use salad oil, and the taste of heavy oil cake is just as its name implies; Cookies, especially those packed in flower bags, are advised not to put too little butter, otherwise they will lose their crispness. If the taste is not too strong, try refrigerator cookies or mold cookies.
Make cakes without butter.
Never use vegetable butter, trans fatty acids are extremely harmful to your health.