The trick to chopping the beef is to cut it into 1-inch chunks, then freeze it for about 15 minutes until it is just firm. These partially frozen chunks chop perfectly in the processor without becoming overworked.
For seasoning, you want a blend of finely ground Parmesan cheese and Asian fish sauce. Don't worry... The finished burgers will taste neither cheesy nor fishy. Both ingredients disappear into the steaky goodness of the beef without leaving behind noticeable flavors of their own. Yet they still impart tremendously savory flavors that produce an incredibly rich burger.
Once your burgers are formed, how to cook them is your call. I like to grill them briefly over high heat, then finish them over cooler flames until just medium-rare.
Super Savory Chop-Your-Own Burgers
4 ounces Parmesan cheese
1 1/3 pounds sirloin steak tips
1 tablespoon fish sauce
2 teaspoons soy sauce
In a food processor, pulse the Parmesan until very finely ground; it should resemble breadcrumbs. Transfer to a large bowl and set aside.
Cut the steak tips into 1-inch chunks, then arrange them in a single layer on a rimmed baking sheet. Place the baking sheet in the freezer for 15 to 20 minutes, or until the pieces of beef are firm, but not frozen solid.
Once the beef is firm, place half of the pieces in the processor (there is no need to wash it out after the Parmesan), then pulse until well chopped, but not ground. This should take about 1 minute of on-off pulsing. Transfer the chopped beef to the bowl with the cheese, then repeat the procedure with the remaining beef.
Drizzle the fish sauce and soy sauce over the chopped beef, then use your hands to mix everything together. Make sure the cheese is evenly distributed, but try not to knead or overwork the meat.
Divide the meat into 4 portions, then form each into a burger patty. As you form the patties, use your thumb to press an indentation into the center of each burger. This prevents the burgers from bulging in the center during cooking. The burgers can be grilled immediately or refrigerated for up to 2 days.
Grill the burgers over high heat for 1 to 2 minutes per side, or until well seared, then either move the burgers to a cooler part of the grill or reduce the flame and cook to desired doneness.
Start to finish • 30 minutes (15 minutes active)
Servings • 4
Nutrition information per serving • 380 calories; 200 calories from fat (53 percent of total calories); 22 g fat (9 g saturated; 0 g trans fats); 130 mg cholesterol; 0 g carbohydrate; 0 g fiber; 0 g sugar; 44 g protein; 1030 mg sodium.