I like to make hamburgers at home. Just a big 1/2 lb. patty on a couple pieces of toast. But I found my hamburgers to be a bit on the bland side. So I looked into it to see what chefs did to make them better. After looking at a bunch of recipes and a Gordon Ramsey video, I tried something different.
The first issue is the ground beef blend. Just straight ground chuck or round is not that great. So I ended up with a simple blend of 2 lbs. of chuck with 1 lb. of sirloin mixed in.
Next, I prespiced the mix with smoked salt, black pepper, onion powder, garlic powder, cayenne, and my own special ingredient; oigatsuo tsuyu soup base. This is a Japanese product you can find at Asian markets. It has a soy sauce-like flavor, but lighter and with a slightly sweet taste. I got it for a Korean recipe and have been experimenting with it since. It is great stuff and adds a nice umami flavor to whatever you add it to. You could use tamari or light soy sauce instead, but trust me; the oigatsuo ...