In a large bowl, add the pork, beef, chives, lemon zest, peppers, thyme and marjoram and mix well. Make into 4 patties. Coat the outside of each burger with the grated potato.
Over medium-high heat, in a large skillet, add the burger and cook on each side about 3-4 minutes, or until the potato crust begins to brown. Turn and cover.
Reduce heat to medium-low and continue cooking until burger is well done*. Now for those of you who wish to have a burger other than well done, simply grill over medium-high heat to your desired doneness. I just happen to love these burgers cooked through.
Remove and served on toasted English muffins. top with Cheddar cheese if you wish or some Dubliner Cheese.