Use a mix of ground beef and pork
Choose meat with some fat for juiciness
Add breadcrumbs or soaked bread
Mix in egg as a binder
Season with salt, pepper, garlic, and herbs
Add grated onion or finely minced onion
Mix gently until just combined
Do not overwork the meat
Shape into evenly sized balls
Chill before cooking for better structure
Brown the meatballs in a hot pan
Finish cooking in sauce or in the oven
Cook until fully done but not dry
Taste and adjust seasoning before shaping
Keep hands slightly wet when rolling
Rest briefly before serving