Donkey meat with too much seasoning will be bitter. The three most taboo spices for donkey meat are fennel, vinegar and pepper. The fragrance of fennel is too strong. When you put fennel in donkey meat, the smell of fennel will drown the donkey meat and taste bitter, so the donkey meat will not taste so delicious. Putting a little vinegar in donkey meat will make donkey meat taste strange. People generally don't put vinegar in cooking. Donkey meat with Chili will taste very dry, but people don't put Chili.