Pernil

Ingredients

• 4 pounds pork roast boneless
• 4 tablespoons olive oil
• 2 limes
• 1 1/2 teaspoons salt
• 1 1/2 teaspoons dried oregano
• 1 1/2 teaspoons ground cumin
• 1 teaspoon garlic powder
• 1/2 teaspoon chili powder
• 1/2 teaspoon paprika
• 1/2 teaspoon crushed red pepper flakes
• 1 onion large, sliced
• roast