Tonight's hamburger

Each time I fix a hamburger at home, I like experiment by making it slightly different than previous times.  I usually make it with minced pork meat cause that's the easiest to find, also, I put finely chopped onions and garlic.  From then on, it's an experiment.

Tonight, in order to make it salty and give it color I put oyster sauce.  Usually I would put paprika, cummin and oregano, but not tonight.  This time I also put some bread crumbs to make the patty softer, and one egg to hold everything together.

When I finished cooking this experiment, and gave it a bite, strange it wasn't salty.  It was kind of sweet!  It didnt' taste bad, but I'd been hoping for a salty hamburger!  Also, I'm not sure what happened this time that the meat felt kind of rubbery.  Did I put too much bread crumbs?  Or was it that I used meat from a different company than usual?  Other days when I open the meat pack, the meat looks like it's been poured directly from the meat grinder into the pack, but today it looked like it'd been mixed cause I couldn't see the extruded shapes.

I think this sweetish hamburger would appeal more to my Japanese friends.  As for myself, I'll stick with salty hamburgers.