Combine all the burger ingredients in a bowl and mix together. Divide into 4 equal portions and shape into burgers about 15 cm across and 4–5 cm thick.

Braai the burgers over hot coals or in a hot griddle pan for 4–5 minutes on each side.

To make the maple and sage sauce, brown the sage leaves in a pan with the butter. Add the syrup and stir. Keep to one side.

Slice the bagels in half and toast. Drizzle one half with olive oil and place a burger on the bottom half of the bagel. Top with a good handful of rocket, a few slices of tomato and onion, and some bacon. Spoon the maple sauce evenly over the fillings and top with the other half of the bagel.