Easy Carnitas (Mexican Slow Cooker Pulled Pork)

Ingredients

• 2 kg / 4 lb pork shoulder (pork butt) , skinless, boneless (5lb/2.5kg bone in) (Note 1)
• 2 1/2 tsp salt
• 1 tsp black pepper
• 1 onion , chopped
• 1 jalapeno , deseeded, chopped
• 4 cloves garlic, minced
• 3/4 cup juice from orange (2 oranges)

RUB:

• 1 tbsp dried oregano
• 2 tsp ground cumin
• 1 tbsp olive oil