Peruvian-style roast chicken with green sauce

Ingredients

• 1 whole chicken
• 2 jalapeños
• 1 oz cilantro
• 1 lemon
• 1 lime
• 4 tsp salt
• 1 1/2 tbsp ground cumin
• 1 1/2 tbsp smoked paprika powder
• 1 tsp dried oregano
• 1 tsp black peppercorn
• 5 cloves garlic
• 2.3 tbsp distilled white vinegar
• 4 tbsp vegetable oil
• 2 tbsp olive oil
• 1/2 cup mayonnaise
• 1/4 cup sour cream
• salt
• pepper