To cook a whole French poussin, preheat your oven to 200°C. Season the poussin generously with salt and pepper, then place in a roasting tray and drizzle with a little olive oil. Roast for approximately 45-50 minutes, or until golden brown and cooked through. Rest for 10 minutes before serving with roasted potatoes, seasonal vegetables, and gravy or your favourite sauce for a tender and flavourful meal.