Put the breadcrumbs in a small bowl, add salt and crushed black pepper and mix well; pour in the milk and mix, let it stand for 10 minutes;
The beef mixture is mixed with egg and chopped onion, you can add more salt and crushed black pepper to the meat mixture, but pay attention to the amount;
Mix the meat mixture with the ingredients thoroughly; add the breadcrumbs inside the meat mixture and continue to mix well;
Put the The meatballs will be made from the mixture. Wear gloves to make the meatballs easier to handle, but if you use your hands, coat them with water to prevent them from sticking to your hands; line a baking sheet with tinfoil and place the meatballs on the sheet.
Go into the oven at 200 degrees for 20 minutes; alternatively, the meatballs can be fried in a pan, which tastes just as good.