Nova Burger Recipe

Cook onions

Heat a nonstick or stainless skillet over medium-low. Add oil and butter; when butter melts, add the thinly sliced onion, sugar, and salt. Stir to combine so onions are coated. Cook, stirring every 2–3 minutes, lowering heat if they begin to brown too quickly. Total cooking time ~18–22 minutes until deeply golden and soft. When done, remove from pan to a small bowl and set aside.

In a small bowl combine mayonnaise, ketchup, yellow mustard, sweet pickle relish, apple cider vinegar, onion powder, garlic powder, and optional hot sauce. Whisk until smooth. Taste and adjust for salt or acidity. Refrigerate until assembly — sauce can be made up to 2 days ahead.

Portion and preheat

Divide the 0.5 lb ground beef into two loose balls (~4 oz each). Do not overwork the meat. Preheat a heavy flat-top griddle or large cast-iron skillet over medium-high heat until very hot (a drop of water should sizzle and evaporate).

Smash and season

Place one beef ball on the hot surface. Using a sturdy spatula or a second flat spatula with a piece of parchment or wax paper between meat and press, smash the ball firmly to a thin patty (~1/4 inch thick). Season immediately with a pinch of kosher salt and ground black pepper. Repeat with the second ball in a separate area of the pan. Leave space between patties.

Cook patties

Cook the patties without moving for 2–2.5 minutes until the edges are deeply browned and crisp. Flip each patty and immediately top each with a slice of cheddar cheese. Cook an additional 45–90 seconds until cheese is melted and patty is cooked through (target medium-well thin smash). Remove patties to a plate and keep warm.

Toast buns

Spread softened butter on cut sides of the bun. Place buttered sides down on the hot pan or a separate skillet for 30–45 seconds until golden and lightly crisp. Remove.

Assemble Nova Burger

Spread about 1 tablespoon of special sauce on the bottom bun. Place one cheesy smash patty on the sauce, then add half of the caramelized onions (about 1–2 tablespoons). Add the second cheesy patty on top. Top with leaf lettuce and 3 pickle slices. Spread a thin layer of special sauce on the top bun and close the burger. Serve immediately.