Servings: 2?

½ cup beef stock (plus a little extra) ½ cup beef stock (plus a little extra)
2 tbsp. or so of red wine vinegar 2 tbsp. or so of red wine vinegar
¼ cup finely chopped onion ¼ cup finely chopped onion
1 clove crushed garlic 1 clove crushed garlic
1 tbsp. butter 1 tbsp. butter
½ tbsp. lemon juice ½ tbsp. lemon juice
½ tbsp. parsley ½ tbsp. parsley

Put the beef stock, onion, vinegar, and garlic into a pan, and reduce on medium until there’s like a quarter cup(?) of liquid left. You’ll know when it looks right, my dude.
Add the butter, lemon juice, and parsley. Keep reducing until it’s like, thick I guess? There will be a tiny amount of liquid, but not too much. You know what it looks like, dummy.
Mix with 1 lb. meat, make into patties, and cook. Enjoy.

It’s tasty AF.  It’s tasty AF.