Whenever I make meatballs or burger patties from scratch, an ingredient that I always use is ground chuck.
Ground chuck is not the typical ground beef you can easily find at any major grocery store—it can only be found at butcher shops.
It has a higher fat content and a much beefier flavour; a secret ingredient among chefs you could say.
My regular favourite butcher is about 10km away from my house.
Recently however, I needed ground chuck and I was in a bit of a hurry, so I decided to go to a closer, unfamiliar butcher shop instead.