Pressure cooker pulled pork

For the spice rub

• 2 tbsp brown sugar soft, light
• 1 tsp sea salt coarsely ground
• 1 tsp dry mustard powder
• 1 tsp onion granules
• 1/2 tsp cayenne pepper or ancho chilli powder
• 1/2 tsp smoked paprika sweet
• 1/2 tsp ground coffee (not instant)

For the pulled pork

• 1.6 kg pork shoulder 3 1/2 pounds
• 2 tbsp olive oil light
• 100 g ketchup 3.5 oz
• 60 ml cider vinegar 2 fl oz
• 200 g pineapple from a 400g/14oz tin, 7 oz, crushed
• 60 ml pineapple juice 2 fl oz
• 3 tbsp rum
• 1 tbsp honey
• 1 tbsp soy sauce
• 1 tbsp Worcestershire sauce
• 1/4 tsp black pepper ground
• 1 tbsp cornstarch diluted in 1 tbsp cold water

To serve

• milk buns
• coleslaw
• pickles