The higher the meat's fat content, the juicier the burger will be but the more it will shrink; we prefer 80 percent lean beef. This hamburger may be grilled instead of panfried.
Variation: This recipe can be prepared on an outdoor grill. Prepare grill for direct heat and preheat. Follow step 2 above. Sear patties on grill until well browned on both sides, turning once. Continue to grill until preferred doneness. To assemble, follow step 4 above.