Last week I made some greasy cheeseburgers. I made 4 thin patties and put a slice of sharp cheddar cheese between 2 of them and squished them together. Then I let them sit for a while in the frig..that did the trick. They did not come apart or leak on a cast iron griddle. I also put a slice of sharp cheddar cheese on top when I cooked them. Talk about a greasy cheeseburger. 80/20, I can't wait to add bacon to the mix. I'm gonna put bacon in everything now. Pam .☆´¯`•.¸¸. ི♥ྀ