Pork burgers with pear relish and onion rings

Ingredients

• 700 gm minced pork
• 2 cloves of garlic, finely chopped
• 2 golden shallots, finely chopped
• 2 tbsp olive oil
• 400 gm red cabbage, finely shredded
• 150 gm whole-egg mayonnaise (½ cup)
• 6 burger rolls, halved
• To serve: barbecue sauce
• Pear relish
• 2 packham pears, halved, core removed and thinly sliced lengthways
• 2 cinnamon quills
• 4 cloves
• 110 gm golden caster sugar (½ cup)
• 60 ml cider vinegar (¼ cup)
• Onion rings
• For deep-frying: vegetable oil
• 2 onions, cut into 5mm rings, separated
• 300 ml buttermilk
• 1½ cups fine yellow cornmeal