Piri Piri Roast Chicken from The Primal Gourmet Cookbook

Ingredients

• 1 small yellow onion, halved
• 1/4 cup extra-virgin olive oil
• 1/4 cup red wine vinegar
• Juice of 1/2 lemon
• 4 garlic cloves, peeled
• 2 fresh red finger chiles (or Anaheim chiles, if not available)
• 1 1-inch piece fresh ginger, peeled
• 1 tbsp kosher salt
• 1 tsp smoked paprika
• 1 tsp sweet paprika
• 1 tsp dried oregano
• 1/2 tsp cayenne pepper, plus more if desired
• 3 lb whole chicken