chicken roast recipe

1.75 - 2 kg / 3.5 - 4lb whole chicken , patted dry ▢Salt and pepper ▢2 tsp olive oil ▢1 lemon, quartered ▢3 rosemary sprigs Butter: ▢100 g / 1 stick unsalted butter , melted ▢3 garlic cloves , minced ▢1 tbsp sage , finely chopped (Note 1) ▢2 tsp rosemary , finely chopped (Note 1) ▢1 tbsp parsley , finely chopped (Note 1) ▢1/2 tsp each salt and black pepper Under Chook: ▢1 cup / 250 ml dry white wine , or low sodium chicken broth ▢1 onion , quartered (Note 2) ▢1 garlic bulb , halv