For the burger sauce
60g mayonnaise
35g tomato ketchup
9g French’s mustard
For the smoked butter
100g unsalted butter
¾ tsp liquid smoke
To cook and finish the burger
4 burger patties
reserved smoked butter
4 slices Monterey Jack Cheese
4 brioche burger buns
reserved burger sauce
4 iceberg lettuce leaves, washed and trimmed
12 rings white onion, thinly sliced and rinsed
4 slices beef tomato, sprinkled with salt and sugar
12 slices gherkins
To make the burger sauce, combine the mayonnaise, ketchup and mustard in a large bowl, whisking well to combine. Set aside.

For the smoked butter, gently melt the butter over a low heat until, then remove from the heat and add the liquid smoke, whisking well to combine. Set aside and keep in a liquid state.
To cook the burgers, light the coals on the Fusion BBQ and once glowing white, lightly season both sides of each patty with salt and place on the grill, flipping the burgers every 20 seconds until the core temperature reads 65°C on a thermometer probe. Remove and place on a cooling rack placed over a tray. Brush each patty with a teaspoon of smoked butter and place a slice of cheese on each patty.
In the meantime, halve the brioche buns and lightly toast on the grill and brush with smoked butter. Spread two teaspoons of burger sauce on each bun’s top half and place the patty on each bun’s bottom half.
Top the patty with lettuce, onion, tomato and gherkin slices. Top with the top bun and serve.
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