Tex-Mex Spare Ribs with Grilled Corn Salsa

Ingredients

• 2 tablespoons brown sugar
• 1 tablespoon dried oregano leaves
• 2 tablespoons sweet paprika
• 2 teaspoons cracked black pepper
• 1/2 teaspoon cayenne pepper
• 1 tablespoon ground cumin
• 1 tablespoon garlic powder
• 1/4 cup (60 millilitres) water
• 2 tablespoons vegetable oil
• 1 1/2 kilograms slabs american-style pork spareribs
• corn tortillas, to serve (optional)
• Corn salsa
• 3 trimmed corn cobs
• 2 medium tomatoes, seeded, finely chopped
• 1 long green chilli, finely chopped
• 1 medium red onion, finely chopped
• 1 medium green capsicum, finely chopped
• 1/4 cup coarsely chopped fresh coriander
• 2 tablespoons lime juice
• 1 tablespoon olive oil