Beef Fry and Onion-Filled Hamburgers

This is a burger experience. The surprise center adds a huge burst of flavor. These are amazing on their own — no need for any toppings.

YIELDS 10

BURGERS FILLING

• 1 Tbsp olive oil
• 1 6-oz (170-g) pkg sliced beef fry, diced
• 1 medium onion, diced

HAMBURGERS

• 3 lbs (1.3 kg) ground beef
• ³⁄₄ cup seasoned panko crumbs
• 3 Tbsp prepared barbecue sauce
• ¹⁄₃ red onion, grated
• 2 egg yolks
• ³⁄₄ tsp salt
• ¹⁄₄ tsp black pepper

Heat olive oil in a small frying pan over medium heat. Add diced beef fry and toss until crispy, about 4–6 minutes. Remove to a plate. In the same pan, sauté the diced onion over medium-high heat until golden, about 8–10 minutes, stirring constantly. Combine with the beef fry. Set aside.

In a large bowl, combine all the burger ingredients. To form uniform patties, take a 3-inch (7¹⁄₂-cm) jar lid. Place a small piece of plastic wrap inside it. Press a small handful of ground beef mixture into the lid. Press down and level the mixture, then turn over onto a lined baking sheet.

Place 1 Tbsp of the beef fry mixture in the center of half the patties. Top each filled patty with a second, unfilled patty. Seal the edges. Grill patties for 3–4 minutes on each side.

(Originally featured in Family Table, Issue 699)