1.？ Dice the front leg of beef, add a spoonful of black pepper juice, a little black pepper, a spoonful of soy sauce, a little oyster sauce, a little sugar and salt, and add a little butter to marinate for ten minutes. If you have time, you can marinate it for a long time without adding salt. (Pineapple) I used instant pineapple. If it is an ordinary pineapple, it needs to be diced and soaked in salt water. )

2. String a piece of pineapple and a piece of beef together, brush with butter, air fry 180 degrees 15-20 minutes, turn over during the period, brush the black beef with black pepper sauce, and then brush with butter, otherwise the meat and pineapple will be dry.