I used to buy burgers from a place that used a combination of choice, prime and wagyu in preformed patties. Expensive but dayum good. They went out of business a while back and I've been disappointed in burgers since. I bought the KA grinder attachment and tried a few combinations over the past couple of years but always came up short.
Stocked up on some ribeyes on sale at Publix this week and figured I would grind one up and give it another go. I remember reading a post where someone here used ribeye for burgers. I'm glad I tried it. Best burgers I've ever done personally, enough left to do a couple for lunch tomorrow.
Still partially frozen, cut into 1" cubes
Problem I've had in the past is that the grind seemed a bit too "chunky", so I ran it through again
Loosely formed patties, 5-6 oz., on at 500* slightly raised direct, 3 mins/ side
Went a little past where I had planned, but still a tinge of pink, and very juicy flavorful, not dry at all