Cachaça roasted chicken with cassava chips

Ingredients

• ½ a bunch of fresh mint
• 1 bunch of fresh coriander
• ½ teaspoon dried red chilli flakes
• 2 cloves of garlic
• 2 spring onions
• 75ml cachaça
• olive oil
• 1.5kg whole free-range chicken
• 6 large shallots or 10 small ones
• 1 fresh red chilli
• 3 ripe tomatoes
• 3 limes
• CASSAVA CHIPS
• 750g frozen cassava chunks (see note)
• 1 heaped teaspoon dried oregano
• 1 heaped teaspoon cumin seeds